You can also use snack credits on some of the pre-packaged items like candy and such. I know people do this when they have some leftover credits at the end of the trip - they will stock up on the Goofy's Candy Co. or Chip & Dale Trail Mix. I am not sure what all qualifies (I think it's most of the bespoke Disney branded stuff) and it may not be the best use of a credit, but it is an option. The trail mix is actually pretty good and has gotten me through a few hangry moments at the parks when stopping to eat wasn't convenient.