Tip #28: On flights, always bring a trial size package of Visine, mouthwash and makeup essentials. A quick freshening at the end of a flight helps you feel human again.
(Domestic flights these days are getting ridiculous too. So also pack some food from home to bring onboard. It will save you from a choice between starvation and bankruptcy. I also bring a small travel pillow and blanket because I get cold easily and they don’t give that stuff out anymore.)
Tip #29: Travel light. Only pack what you can carry by yourself.
Tip #30: If you have special diet restrictions, plan accordingly.
Tip #31: At least once in your life, travel alone to a foreign country.
Tip #32: Learn a foreign language.