The one thing I didn't see listed here as food, but still a good one, is Twinkies. Twinkies were popular back when people were worried about the A-Bomb, and they probably have a half life that's just as long. During a tour of an old bomb shelter I took years ago, there was an old box of them {Twinkies, not A-Bombs :-) } sitting on a shelf in the shelter. The tour guide said that Twinkies are one of the longest lasting edible foods created, mainly because of all the preservatives. With that in mind, we have a Hostess 'thrift-shop' here that sells them for a dollar a box; I bought 20 boxes..

If anything else, you should get enough sugar in your sweat to attract bees from 100 miles away; then you could live off the honey..