Things People Forget to Pack: Travel Essentials Checklist

Ask a room of travelers what they forgot on their last trip and you won't hear "my good camera". You'll hear toothbrush. Charger. Socks. The boring stuff.

We went through Reddit's biggest packing threads to see what people actually forget, what they're glad they packed, and what they regret: r/TravelHacks' "What's one thing you never travel without?" (835 comments), r/onebag's "What's the thing you always pack and never regret?", r/HerOneBag's "What's the one 'just in case' item you always pack?", r/travel's "What are some things you regret spending money on during travel?" and more. We also used a count of the most forgotten items from about 1,163 Reddit comments, done by the travel insurer JustCover.

Short version: the things people forget most are everyday basics: medication, a hairbrush, underwear, chargers, contacts, a toothbrush. Most can be bought at your destination, but medication, contacts or glasses, your passport and a charger for an unusual device can't, so pack those first. Then add the small things travelers rate highest: a mini pharmacy (painkillers, stomach meds, plasters), earplugs and an eye mask, zip bags, a big scarf, a power bank and a spare cable.

The most forgotten travel items, ranked

From JustCover's analysis of Reddit threads (data as of June 2025), counting how many comments mentioned each item:

The useful column is the last one. A forgotten toothbrush costs you a few dollars and ten minutes. A forgotten prescription can cost you a day at a clinic, or worse.

"Just buy it there" is only half true

r/onebag loves the line "whatever you forget, you can buy at your destination". It's true for a toothbrush. But in r/travel's "things you regret spending money on" thread, one of the top answers (around 500 upvotes) was exactly this: random toiletries and over-the-counter medicine bought on the trip that could have been packed. The commenter said they've never been on a trip where they didn't end up buying something like that, at tourist prices.

Two things people specifically say to pack instead of buying:

• Sunscreen. Commenters keep warning that it's marked up hard at beach and resort shops, so bring your own. Some destinations, like Hawaii and some Mexican eco-parks, also restrict sunscreens with oxybenzone or octinoxate, and reef-safe ones can be hard to find locally. Keep it under 100 ml if it's in your carry-on.
• Bug spray. A commenter in r/TravelHacks saw a small bottle selling for $25 on a bus in Tulum.

A well-upvoted tip in r/TravelHacks' "underrated travel hack" thread sums it up: pack the things that are specific to you first, the ones you can't get at a convenience store. Forgetting contacts or meds is much worse than forgetting a toothbrush.

Pack the "can't replace" things first

Before any clothes go in:

• Medication, with a few extra days' worth. Keep it in the original packaging if you can, and take a photo of the label.
• Passport or ID, and any visa or entry documents. Check the expiry date. Many countries want months of validity left.
• Glasses and contacts, plus a spare pair of glasses. In r/HerOneBag's "just in case" thread, backup prescription glasses were the most upvoted answer. Several people with strong prescriptions pointed out a quick replacement isn't possible.
• Chargers for everything you bring, especially a laptop or a camera with a special battery.
• Cards and a little cash. One backup card kept apart from your wallet.

The top comment in r/onebag's "always pack and never regret" thread passed on a dad's calmer advice: with your passport and money, everything else sorts itself out. Add medication and your phone, and that's the real must-have list.

Keep all of these in the bag you carry on the plane. Our flight essentials guide has the full list for that bag.

The mini pharmacy: the most upvoted travel essential

The single most upvoted answer in r/TravelHacks' "What's one thing you never travel without?" thread (over 500 upvotes) wasn't a gadget. It was a "portable pharmacy": a few ibuprofen, chewable Pepto-Bismol, Imodium and a couple of plasters. Similar lists came up in almost every thread:

• Painkillers (ibuprofen or paracetamol). One r/onebag commenter said a single bad headache on a trip was enough to make them pack ibuprofen forever.
• Stomach meds: anti-diarrhea tablets and something for heartburn or nausea. Several people say they'll never again go somewhere food poisoning is common without them.
• Oral rehydration salts or electrolyte packets. Hunting for these in a foreign pharmacy while sick is miserable.
• An antihistamine, for allergies or bites.
• Blister plasters, the hydrocolloid kind.
• Throat lozenges and a cold remedy you know. Familiar brands can be hard to find abroad.

It all fits in a small zip bag. Not a full first-aid kit. Pharmacies exist; this is just for the night you can't get to one.

Small things travelers swear by

These come up again and again in r/onebag, r/HerOneBag and r/TravelHacks. None of them is expensive, and most weigh almost nothing.

• Earplugs and an eye mask. The top answer in r/TravelHacks' "most underrated thing to pack", and again in r/onebag's "favorite non-clothing thing to always pack". You never know when you'll get the room next to reception or the breakfast room.
• Zip bags. The top answer in r/onebag's "essential item other travellers may not think of" thread: wet clothes, leftovers, a leaky shampoo, a phone on a boat. Bring a few small and a few large.
• A big scarf or sarong. People list a dozen uses for one: blanket, shawl, eye mask, towel, skirt, even a shopping bag. It also covers your shoulders at temples and churches.
• A power bank and a spare cable. When your maps, transit cards and tickets live on your phone, a broken cable is a real problem.
• An extension cord or a multi-port charger. Older hotels often have no socket near the bed. That answer got 240 upvotes.
• A plug adapter for the countries you're visiting. One with USB ports beats a bag of single ones.
• Clothes pegs or binder clips. For hotel curtains that won't close, and for drying laundry.
• A packable tote. Groceries, beach stuff, extra things on the way home.
• Spare underwear. Always one or two more than you think.
• An old phone. Several people bring their previous phone as a backup. If the main one is lost or stolen, you can still get online and set up a new eSIM.
• A pen. For arrival cards and forms. Our flight guide explains why.
• Light rain gear. A packable jacket or poncho. It weighs little, and on the one day you need it, nothing else will do.

What people regret packing

The flip side is just as useful. When travelers list what they always pack and never use, the same things come up:

• Too many clothes. One commenter admitted to a dozen pairs of underwear and more socks than that for a 7-day trip. Another's strategy: lay out what you want to bring, then cut it in half.
• Workout clothes for a gym you never visit.
• The mini sewing kit. Plenty of people carry one for years and never open it. (In fairness, one person finally used theirs to sew their sister into a broken wedding dress.)
• Physical books you don't read, when you have a phone or e-reader.
• Gadgets you won't touch on a short trip.
• Pepper spray. Not just useless but a risk: one commenter was arrested at Hamburg Airport over a sealed can deep in their bag. Many countries treat it as a weapon.

If you're flying a 7 kg airline or carry-on only, this list is where the weight comes off. The carry-on weight calculator shows how much each item adds.

How to stop forgetting things

The people who don't forget stuff aren't more organized. They just stopped packing from memory.

1. Keep one written checklist and reuse it. A highly upvoted r/TravelHacks tip: a list of the "random stuff" (headphones, door keys, adapter, cables), not clothes, checked every single trip. Add a "don't bring" section too, like the pocket knife and a full water bottle. The packing list maker gives you a printable one sized to your trip.
2. Pack the "can't replace" items first, then clothes last.
3. Keep a toiletry bag that lives packed. A spare toothbrush, mini toothpaste, deodorant, nail clippers and your mini pharmacy that never get unpacked at home.
4. Pack the night before, not the morning of. Rushing is when the charger stays in the wall.
5. Take photos as you leave. One r/TravelHacks commenter photographs the stove knobs, thermostat and door lock on the way out, so they don't spend the flight wondering.
6. Do a walk-through when you check out. Bathroom, sockets, the safe, under the bed. Hotel rooms are where chargers and adapters go to die.

A quick "don't forget" checklist

Can't easily replace

• Passport, ID, visa or entry documents
• Medication, plus a few extra days
• Glasses, contacts, a spare pair of glasses
• Chargers for laptop, camera, any special device
• Cards, a backup card, a little cash

Mini pharmacy

• Painkillers
• Anti-diarrhea and heartburn tablets
• Rehydration salts
• Antihistamine
• Blister plasters

Easy to forget

• Toothbrush and toothpaste
• Hairbrush or comb
• Underwear and socks (one more than you think)
• Pyjamas
• Nail clippers
• Deodorant

Small and worth it

• Earplugs and eye mask
• Zip bags
• Plug adapter, power bank, spare cable
• Big scarf or sarong
• Pen
• Sunscreen (100 ml or less in a carry-on)

Frequently asked questions

What is the most forgotten item when traveling?

Medication, according to an analysis of about 1,163 Reddit comments about forgotten travel items. Hairbrushes, underwear, chargers and contact lenses came next. Medication is also the hardest to replace abroad, so pack it first and keep it in your carry-on.

What travel essentials should I never forget?

Your passport or ID, medication, glasses or contacts, chargers, and a payment card. After that, the items travelers on Reddit rate most are a small pharmacy kit, earplugs and an eye mask, a power bank, and zip bags.

Can't I just buy what I forget when I get there?

Everyday things, usually yes. But prescriptions, contacts and your passport can't be bought, and travelers say toiletries, sunscreen and over-the-counter medicine often cost much more at tourist spots. Packing them is cheaper and saves time.

What should I not pack when traveling?

Most travelers say they over-pack clothes, bring workout gear they never use, and carry books and gadgets that stay in the bag. Don't pack pepper spray or knives in your carry-on, and never put a power bank or spare lithium battery in checked luggage.

How do I make sure I don't forget anything?

Use the same written list every trip, pack the things you can't replace first, keep a toiletry bag that stays packed between trips, and pack the night before. A printable list sized to your trip helps.

Should I pack medication in my carry-on or checked bag?

Your carry-on. Checked bags get delayed, and prescriptions are hard to replace abroad. Medically necessary liquids are allowed through security in amounts over 100 ml; tell the officer at screening.