5 Tips for Air Travel
Wear
... comfortable clothes and a light coat in case you get cold inside the plane.

Carry
... a small pillow so you can sleep better if you get sleepy.
Have
... toothbrush and toothpaste in your bag, so you can clean yourself before landing.
Minimize
... carry-on luggage. Pack only what is absolutely necessary.
Use
... your own headphones, the ones provided on the plane may cost you money and/or be of poor quality.