Looking for simple things that don't have to be cooked or refrigerated. A few so far:
Whole Wheat Bagels (I usually add fat free cream cheese)
Fruit- Bananas, Apples, etc. Prunes & Raisins are especially portable.
Kashi Granola Bars
I'm not sure about rice cakes, but I assume they are fairly hi GI.
Baked beans fit the category I guess, if you like to eat 'em cold like I do. You'd also need a can-opener & a spoon though.
Any other ideas?