it's hard eh?? i'm in university and some days i am there ALL Day.. there are TONS of fastfood places on campus but i try and bring my own snacks... popcorn is relatively healthy.. you can pop it the night before and put it in a baggie... or if you have a microwave at school just do it there... i try and bring fruit that is in season... i LOVE sugar so i try and keep it natural!! i'll mix a bunch of berries together and bring them for a snack... how about crackers and cheese?? i'ts so hard.. good for you for being healthy