A personal item should contain a curated capsule of in-flight essentials that take up minimal space. Most airlines limit the size to 18 x 14 x 8 inches, so it’s crucial to be strategic and consider how full your bag may be once packed. As someone who now flies once a month (and traveled full time for three years), I have plenty of experience, and never take off without my trusted sleep mask , cozy socks , and power bank . I also swear by my Béis Mini Weekender (which I’ve had no trouble squishing under the seat in front of me on over 120 flights), but you can use a backpack , small duffel , or even an underseat suitcase . What matters is what’s inside, as they say—so I’ve combed through the top-rated products that have been tested, reviewed, and recommended by the T+L team for staying comfortable, organized, entertained, and hydrated in-flight.  Packing Checklist for a Personal Item You need to keep your essentials in easy reach on a long flight, so it pays to pack your personal item carefully.…