Haha not much because I usually am going on vacation which distracts me and makes me :D but I suppose it would be
Food: I'm always famished when traveling to and fro there is almost no time to eat, or the food I do purchase is a snack box,(what the heck? why not have the option for customers to buy a sandwitch?) LOL
On a positive note the thing I love when flying on a plane is when they bake chocolate chip cookies :)!