A well-packed carry-on is the Swiss Army knife of airplane travel — it has helpful items in every category covering your entertainment, comfort, hygiene, nourishment, sleep, and any other needs you have. Whether you’re getting on a puddle-jumper or a long-haul flight, it pays to keep your essentials handy. And while you may not pack everything we call out below, this checklist will serve to jog your memory so you don’t forget any items. Consult this list so you’re not cursing yourself the next time you realize your headphones are in your checked luggage.

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