6- Stock up on entertainment
Many airlines’ in-flight entertainment systems have outdated content, and it’s common for the one in our seat to malfunction.
So bring along some podcasts, movies and other videos or a good book. A tip for books, take the time (a few days ahead) to read the first chapter of the book you intend to take on the trip. It’s frustrating to have a dull and uninteresting book during such a long trip.