It can help to keep your collar stiff for that all-important post-flight business meeting.
3. Book the aisle and window seat
If two of you are flying together, book the aisle and window seat. Because most other people usually choose those seats (and not the middle one) this should mean you have all three seats between the two of you if the flight isn't completely booked up.
If you're going hiking or even just walking around town all day and you don't have a waterproof rucksack, this will help keep all your stuff dry.
11. Don't bother taking your expensive speakers with you
Just make one of these toilet roll speakers...
12. Use private browsing when booking flights or delete your cookies
According to Time, websites like to use something called "dynamic pricing" and will track your browsing history and hike up prices once they know you're interested in a flight. Use incognito browsing or, better yet, delete your cookies in order to stop them.