I like to carry a few MRE's, a can or bags of nuts (mixed), a few small boxes of raisins, Granola bars, a few packs of instant grits (or oatmeal), some Slim Jim's, Old fashioned pork skins, little Hershey's chocolate bars, a few bottles of water, quite a few 1 gal sized ziplock bags. <img src="/images/graemlins/cool.gif" alt="" />
I know that if I keep a good knife with me, I can make do anywhere because my imagination is my only limiting factor!