How to Travel with Only a Carry-On (The "One Bag" Manifesto)

This is the #1 reason people overpack. "What if it rains?" "What if I get invited to a diplomatic gala?" "What if I spill wine on three shirts?"

Stop. You are traveling to a place where people live. They have stores. They have laundromats. They have umbrellas.

The Rule: If you haven't worn it in the last 3 weeks at home, you won't wear it abroad.

The Reality: You will wear your favorite 2 outfits on repeat anyway. Pack them. Leave the rest.

Cotton is the enemy. It’s heavy, it wrinkles, and if it gets wet, it stays wet for days.

Switch to Merino Wool or Synthetics.

Odor Resistant: A high-quality Merino t-shirt can be worn 3–4 times without smelling. That means you only need to pack 3 shirts for a 2-week trip.

Quick Dry: Wash it in the hotel sink at night. It’s dry by breakfast.

Layers: Don't pack a giant coat. Pack a thermal base layer, a hoodie, and a lightweight rain shell. Combined, they are warmer than a parka and take up 1/4 of the space.

If you throw clothes loosely into a backpack, it’s chaos.

Get Compression Packing Cubes.

They squeeze the air out of your clothes, saving 30% of the volume.

They organize your bag (T-shirts in one, socks in another).

When security asks to search your bag, you pull out 3 neat cubes instead of exploding your underwear all over the TSA table.

Hotels have shampoo. Airbnbs have soap. Do not pack full-sized bottles.

Solids are King: Solid shampoo bars, solid deodorant, solid toothpaste tabs. They don't count towards your liquid limit, and they never explode in your bag.

Buy Locally: If you need sunscreen, buy it when you land. Why pay to fly a bottle of lotion across the ocean?

In 2026, your electronics are the heaviest things you carry. Optimize them.

One Charger to Rule Them All: Buy a 65W GaN (Gallium Nitride) wall charger. It’s the size of a golf ball but powerful enough to charge your laptop, phone, and headphones. Leave the giant brick at home.

No Paper Books: A Kindle holds 5,000 books and weighs less than a sandwich.

No Physical SIMs: Why carry a plastic card holder or a SIM ejector tool? Use a Bitcall eSIM. It weighs literally nothing.

Of course not. You fit 7 outfits and you do laundry.

Sink Wash: Takes 5 minutes.

Local Service: In most of the world (SE Asia, Latin America), "Fluff and Fold" laundry services are cheap and fast. Drop off a bag in the morning, pick it up clean and folded in the evening for $5.

When you land with only a carry-on:

You walk past the baggage claim crowd.
You hop on the train/bus instantly.
You never worry about the airline losing your stuff.

Travel light. Move fast. Stay connected.