Very good selections in the above posts, also keep in mind things like...

Packets of Jello.
Small bags of rice and barley,(carried like a bean-bag, can also be used as a rifle butt-sock, you long range shooters should know what I mean).
Coast Guard Emergency Sea Rations,(packed like hard cakes for near a weeks worth, good nutritional value).
Instant coffee in a small zip-lock bag,(add packets of bees honey and/or sugar with non-dairy creamer, if you wish).
Energy bars for long distance hiking works well also.

Michael

"Argue for your limitations, and in the end, when all is said and done, they're your's!"

"Sheeple & Shepherds, pick one! You can't be both no matter how you dress."

The higher ya go... the higher ya can get! Mountain Men Rock!