Five Carry-On Items I Never Fly Without

3. A small zip pouch for the essentials

This is the unglamorous hero of the list. One soft pouch, roughly the size of a paperback, holds the things that turn into emergencies when they scatter: a phone cable and a compact charger, a spare pair of earplugs, a couple of plasters, a single pen, some painkillers, and lip balm. Everything lives in one place, so I am never digging through the whole bag with a line forming behind me.

The pen alone has justified the pouch a dozen times. Customs forms still exist in much of the world, and the moment you need to write something down is never the moment a pen appears on its own.

The goal is not to pack for every disaster. It is to make the small, likely annoyances cost you nothing.

4. A light layer that packs down small

Planes run cold, gates run hot, and the weather where you land is rarely the weather you left. A thin merino sweater or a packable jacket handles all of it. Rolled tight, mine takes up less room than a folded towel, and it doubles as a pillow against the window when I want to sleep.

I have stopped trusting cabin blankets to exist, let alone to be clean. Bringing my own warmth means I am comfortable regardless of what the airline forgot to stock that day.

5. A few snacks I actually like

Not airport snacks bought in a panic, but a small stash chosen at home: a couple of bars, some nuts, a piece of fruit that travels well. Hunger makes everything worse, including your judgment and your patience with strangers. A handful of almonds at the right moment has talked me out of more bad airport decisions than I can count.

Here is the short version, the list I run through before I zip the bag shut:

• Water bottle — empty through security, full before boarding.
• A paper book — no battery, no notifications, no excuses.
• A zip pouch — cable, charger, earplugs, plasters, a pen.
• A packable layer — warmth and a pillow in one.
• Snacks you like — chosen calmly at home, not bought in a panic.

None of this is clever. That is rather the point. The traveler I want to be is not the one with the most equipment but the one who can shrug at a delay, pour a glass of water, open a book, and wait it out in peace. Five small things, and most of the day’s friction simply disappears.