Depending on season, I crave (non-alcoholic) cold drinks (that means ice). The other thing I sometimes needed more than food & drink?-- a way to charge electronic devices (kinda assumes you might be there with a vehicle).
BTW, bless you. Some misanthropes disdain trail magic of any sort. Not me, it can brighten my day!
So I'm a misanthrope because I go to the AT and don't want handouts? Hmmm