Busy Mom Tip #2:
Use small coffee filters (the cone shaped ones) for snack holders. The kids can eat their snack, then toss the filter. It's good for portion control, too.
For popcorn I use a paper napkin with one corner pulled out for a pocket. It's nice to use if the kids have snuck down from bed to get some of your popcorn and you don't want to lose another bowl to their room.