lcm and I buy sharkies by the box...
you can get them at REI among other outdoor stores but if you buy them at whole foods in Portland (not sure if you guys have them in WA) by the box you get a 10% discount...
Something else we do is buy cookies for diabetics (whole foods also has an excellent selection)... you'd be surprised how good they are!
Finally my favorite snack food is dried fruit... bananas, prunes, mango, etc etc Great replacement and good for you!