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You’re at the terminal, the bags have gone, the ship is huge and white and gleaming, and then it hits you. The toothbrush is still in the bathroom at home. Or worse: the passport is still in the drawer.
Some forgotten items cost you a few awkward dollars in the ship’s shop. One costs you the whole cruise. We went through what cruisers say they forget, what the cruise lines’ own rules say happens next, and what the replacements cost once you’re on board.
Here’s the short answer. The five most forgotten cruise items worth worrying about are your travel documents, your prescription medication, your phone charger, your toothbrush and basic toiletries, and your sunscreen and sunglasses. The first can stop you boarding with no refund. The other four can be replaced on board, at a price.
5 Most Forgotten Cruise Items: The Short Version
First, an honest word on “most forgotten”. Nobody keeps an official league table. We built this list from two pieces of evidence. One is a poll on the Facebook page of John Heald, Carnival’s brand ambassador, in which Carnival cruisers named what they forget to pack. Cruise Fever reported the top ten in April 2025. The other is a Confused.com survey of what cruisers lose, reported by Cruise Mummy in January 2026. Then we ranked the items by what it costs you to be without them.
| Forgotten item | What happens | Can you replace it on board? | Whose rule |
|---|---|---|---|
| 1. Travel documents | Carnival: you won’t board, and you get no refund | No | Carnival; Royal Caribbean ticket contract |
| 2. Prescription medication | A paid visit to the medical centre, if it stocks your drug | Sometimes, at a cost | CDC; Royal Caribbean and Holland America FAQs |
| 3. Phone charger | Shop prices, and the wrong plug block gets confiscated | Usually, in the shop | Royal Caribbean’s prohibited items list; Carnival |
| 4. Toothbrush and toiletries | Your cabin has shampoo and body wash, not a toothbrush | Shop, or ask guest services | Cruise Radio; Cruise.Blog |
| 5. Sunscreen and sunglasses | About three times the store price on one Royal Caribbean ship | Yes, expensively | Cruise.Blog; Carnival’s sunscreen advice |
1. Your Passport or Birth Certificate (the One You Can’t Buy On Board)
Every other item on this list has a workaround. This one doesn’t. The ship’s shop sells sunscreen, not passports.
Carnival’s pre-cruise information page puts it in one line: “Any guest without proper documents will not be allowed to board the vessel and no refund of the cruise fare will be issued.”
Royal Caribbean’s ticket contract (version R(US)OCT2026) makes the documents your job, not theirs. Section 9.b says: “Guests are solely responsible to maintain in their possession all passports, visas and other travel documents required for embarkation, travel and disembarkation at all ports of call.” Section 8 adds that “no-shows” are “without refund, compensation, or liability on the part of Carrier whatsoever.”
Which documents you need depends on the itinerary. US Customs and Border Protection says US citizens on closed-loop cruises, which start and end at the same US port, “are able to enter the United States with a birth certificate and government-issued photo ID.” CBP also warns that the countries you visit may still want a passport. A passport is the safer choice, and some routes require one. We’ve checked every itinerary type in our guide to whether you need a passport for a cruise.
What to do: put the documents for everyone in your party in one bag the night before, and make that the bag you never check. Take a photo of each one too. A photo won’t get you aboard, but it helps if the original goes missing in port.
2. Your Prescription Medication (and Why It Belongs in Your Carry-On)
People rarely leave their pills at home. The usual mistake is packing them in the suitcase you hand to a porter, which you might not see again until the evening.
Royal Caribbean’s packing FAQ is specific: “We suggest that guests transport all their medications in their carry-on luggage to minimize the potential for diversion or loss of medications.” It asks that “all medications remain in their original, labeled prescription containers” and suggests “at least three days of extra medication in the event of an unexpected change in the itinerary.” Holland America says the same: “Keep medication in your purse or carry-on bag rather than in checked luggage,” in its original container, with enough for the whole cruise.
The contract explains why the lines are so keen. Section 4.d of Royal Caribbean’s ticket contract says the line is not liable for “loss of or damage to jewelry, cash, negotiable paper, photographic/electronic, medical or recreational equipment, dental hardware, eyewear, medications or other valuables” unless you’ve handed them over for safekeeping against a receipt. If your checked bag goes astray with your insulin in it, that’s your problem.
And if you do need a replacement on board, it isn’t free. The CDC’s Yellow Book chapter on cruise travel warns that “the cost of onboard medical care—clinician exam, tests, and medications—is typically not included with a voyage’s expense.” Holland America says it will help fill a prescription during the cruise, but “additional charges” apply. The ship may not stock your drug at all, in which case you’re looking for a doctor and pharmacy in the next port.
The same goes for everyday painkillers. The CDC notes that over-the-counter medicines bought on the ship tend to cost more, and it suggests packing them. Cruise.Blog wrote down the prices on a Royal Caribbean cruise in 2024: $15.99 for 24 Advil and $15.99 for 24 Benadryl, against $15.48 for 360 Advil at Sam’s Club.
What to do: carry-on, original labelled bottles, three spare days’ supply, and a small kit of painkillers, antacids and seasickness tablets. If anything needs refrigerating, tell the line before you sail. Then buy travel insurance with medical cover: our guide to whether you need insurance for a cruise shows what the ticket contract leaves you paying.
3. Your Phone Charger (in a Form the Ship Allows)
Chargers turn up in both sets of data. They were number three in the Heald poll, where one cruiser admitted they “Way overpaid for one in the Fun Shop,” as quoted by Cruise Fever. And in the Confused.com survey, chargers and power banks were tied with sunglasses as the items most often lost on board. Of the cruisers who’d lost something, 30% had lost one, according to Cruise Mummy. More than one in five cruisers said they’d lost something on a ship.
So this item can catch you twice: once on the way there and once on the way home. The trap on the way there is bringing the wrong thing.
Royal Caribbean banned “power strips/surge protected strips and multi-plug outlets” in September 2024, as reported by Royal Caribbean Blog. A week later the line clarified that it does allow a “consumer type power conversion device USB charger (multi-plug blocks on which the outputs are for USB cables),” as long as it is “stamped with US/Europe recognized Conformance Marking,” according to Cruise Radio. In plain English, a USB-only charging block is fine, but anything with extra wall sockets isn’t.
Carnival didn’t follow. John Heald said on Facebook, as quoted by Cruise Hive: “I read about this and we have no plans to do the same. Thank you, just remember no power strips with a surge protector are allowed.” The Points Guy says surge-protected strips are “banned on most cruise lines and will be confiscated.”
What to do: pack one certified USB-only charging block with enough ports for your group, plus a cable for each device and a spare. On the last night, check every socket, including the ones behind the bed. If you use a lanyard for your key card, our lanyard guide covers the ships that hand them out free.
4. Your Toothbrush and the Toiletries Ships Don’t Supply
Number one in the Heald poll wasn’t a gadget. It was the toothbrush. One respondent said: “Toothbrush. Could not get one anywhere on the ship.” Deodorant came second: “it cost me $15 bucks on the ship and they only carried one man’s brand.” Toiletries in general were eighth.
People forget these because they assume a cruise cabin is stocked like a hotel bathroom. It mostly isn’t. Cruise Radio says “most cruise lines only offer shampoo, bar soap, and body wash” in the cabin. Cruise.Blog agrees: Royal Caribbean provides a shampoo and body wash hybrid, Carnival separate shampoo and body wash, and neither puts conditioner in standard cabins. There’s no toothbrush, toothpaste, deodorant or razor.
The shop will usually have them, at shop prices. Cruise.Blog’s Royal Caribbean price list included $4.99 for two disposable razors, $6.95 for ten feminine hygiene products and $20 for 20 makeup wipes. There’s also a cheaper option. Your Mileage May Vary says guest services “may be able to help you out” with a forgotten toothbrush, toothpaste, razor and other basics, but “each cruise line is different and some might charge you.” As the poll shows, it’s not guaranteed.
What to do: keep a toiletry bag that’s always packed, with travel-size copies of everything, so it never has to come out of your bathroom at home. If you forget something anyway, ask guest services before you queue at the till. Royal Caribbean’s FAQ also says to pack an overnight bag for the last night, because “Staff will collect your luggage the night before disembarkation.” Keep your toothbrush in it.
5. Sunscreen and Sunglasses (and the Sunscreen Carnival Wants You to Use)
Sunscreen is the item where forgetting costs most in plain dollars, because you’ll go through a lot of it. Cruise.Blog found sunscreen at $22.99 for 6 oz on its Royal Caribbean cruise, which it worked out at $3.83 an ounce. The same shopper paid $13.99 for a two-pack at Target, about $1.17 an ounce. “If you wait to purchase sunscreen onboard your cruise, you’ll be spending three times as much,” the writer concluded.
Which sunscreen you bring matters too. Carnival’s own sunscreen guide says: “we ask our cruisers to wear only biodegradable sunscreens for all beach and pool excursions.” It asks you to avoid products containing “oxybenzone and octinoxate” and recommends “mineral-based, biodegradable sunscreens with zinc oxide and titanium dioxide.” The bottle in the ship’s shop may not be that kind, which is another reason to buy your own before you go.
Sunglasses are the other half. They were the joint most-lost item in the Confused.com survey: 30% of cruisers who’d lost something had lost sunglasses or prescription glasses. Royal Caribbean’s packing advice lists sun protection such as hats for Caribbean and Mexico cruises.
What to do: buy mineral sunscreen at home in a size that will last the whole trip. Pack a cheap spare pair of sunglasses and a hat. If you wear prescription glasses, bring a spare pair or your prescription.
What Forgetting Costs: Onboard Prices vs the Store
These are the prices Cruise.Blog recorded on one Royal Caribbean cruise in 2024, against the store prices it paid at home. Ships and years vary, so treat them as a guide, not a menu.
| Item | On board | At home |
|---|---|---|
| Sunscreen | $22.99 for 6 oz ($3.83/oz) | $13.99 two-pack at Target ($1.17/oz) |
| Advil | $15.99 for 24 | $15.48 for 360 at Sam’s Club |
| Benadryl | $15.99 for 24 | $5.48 for 600 at Sam’s Club |
| Disposable razors | $4.99 for 2 | $19.48 for 12 at Sam’s Club |
| Feminine hygiene products | $6.95 for 10 | $10.49 for 50 at Target |
| Makeup wipes | $20 for 20 | $6.99 for 20 at Target |
Honourable Mentions From the Poll
The rest of the Heald top ten is a reminder that clothes get forgotten too: socks (“Had to wear my husband’s for a week lol”), swimsuits, underwear, shoes, hair items and pyjamas. None of them will stop you sailing, but a forgotten swimsuit on a Caribbean cruise means paying shop prices on day one.
Your Carry-On Checklist
Your checked bags may not reach your cabin for hours, so this is what should stay with you:
- Passport, or birth certificate and photo ID, for everyone in your party, plus your boarding documents.
- Prescription medication in original labelled bottles, with three days’ spare.
- A small kit of painkillers, antacids and seasickness tablets.
- A certified USB-only charging block and your cables. No surge-protected strips.
- Toothbrush, toothpaste and deodorant.
- Mineral sunscreen, sunglasses, a hat and a swimsuit, so the first afternoon by the pool doesn’t cost you anything.
Quick Answers
What do people forget most on a cruise?
In a poll of Carnival cruisers on brand ambassador John Heald’s Facebook page, the top answers were toothbrushes, deodorant and phone chargers, followed by socks and swimsuits. The most costly thing to forget is your travel documents, because without them you can’t board.
What happens if you forget your passport for a cruise?
If you don’t have the documents your itinerary requires, you won’t be allowed to board. Carnival says no refund will be issued, and Royal Caribbean’s ticket contract makes documents the guest’s sole responsibility. Some closed-loop US sailings accept a birth certificate and photo ID instead of a passport.
Can you buy a toothbrush on a cruise ship?
Usually, in the onboard shop, and guest services may give you one, though some lines charge. Cabins typically come with shampoo and body wash only, so pack your own toothbrush, toothpaste and deodorant.
Can you bring a power strip on a cruise?
Not one with a surge protector, which most lines ban. Royal Caribbean also bans multi-plug outlets and power strips, but allows certified USB-only charging blocks. Carnival allows power strips without surge protection.
What if I forget my medication on a cruise?
Go to the ship’s medical centre. It may be able to fill common prescriptions, but you pay for the consultation and the medicine, which the CDC says are typically not included in the fare. If the ship doesn’t stock your drug, you’ll need a doctor and pharmacy in port.
The Bottom Line
Four of the five most forgotten cruise items are just a tax on forgetfulness: a $15 deodorant, a $23 sunscreen, an overpriced charger. The fifth is the whole holiday. Pack the documents and the medication in the bag that never leaves your hand, keep a toiletry bag permanently packed, and check behind the bed before you go home.
Cruise Chaos earns nothing from cruise lines, shops or booking links. Every fact in this guide links to where we read it. Rules and prices were checked on October 4, 2026, and onboard prices vary by ship. If something has changed, tell us and we’ll correct it.
Coming up on Cruise Chaos: 10 things to know before you book your cruise.
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Keep Reading
- 7 Hidden Things on a Cruise Ship That Are Helpful to Know
- Do You Need a Passport for a Cruise? Every Itinerary Checked, From Alaska to Europe
- Cruise Packing Don’ts Every Traveler Should Know
Sources
- Cruise Fever: Carnival cruisers reveal the top 10 things they forget to pack (April 2025)
- Cruise Mummy: New study reveals the item most commonly lost by cruise passengers (Confused.com survey, January 2026)
- Carnival: Important information to know before you go
- US Customs and Border Protection: Western Hemisphere Travel Initiative
- Royal Caribbean: Cruise/CruiseTour Ticket Contract (US), sections 4.d, 8 and 9.b
- Royal Caribbean: What should I pack for my cruise?
- Holland America: What about medications and prescriptions?
- CDC Yellow Book: Cruise ship travel
- Cruise.Blog: I saved money by shopping at Sam’s Club before my upcoming cruise (June 2024) and What toiletries to pack for a cruise (March 2024)
- Royal Caribbean power strip ban: Royal Caribbean Blog and Cruise Radio (September 2024)
- Cruise Hive: Carnival won’t join in on controversial Royal Caribbean ban (September 2024)
- The Points Guy: What not to pack for a cruise
- Cruise Radio: 41 things people often forget on their cruise
- Your Mileage May Vary: 10 free things you can get from guest services on a cruise (September 2025)
- Carnival: Best sunscreen types for a cruise
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