Cashews

Cashews are the absolute best snack you can get on an airplane.
Typically they bring you some 'low-salt' pretzels [5 or so in a pack] and a drink... the drink being the smallest plastic cup you an manufacture and not call a thimble... they fill it with ice and drip some soda into it.
When I got cashews the other day - my attitude quickly changed and I smiled when I got the drink.