We used to provide the snacks and I'd send out a list of needed donations. I would inform parents that they should expect to be asked for specific items 2-3 times a year. The snacks we unified through all 3 classes so parents purchased a bulk quantity. I created the snack menu. It wasn't easy- parents forgot, got wrong items tr not enough. someone had allergies. We switched to parents bringing their own snack items for morning and afternoon snacks depending on their chosen schedule as well as their lunch as needed. We also send all food related trash home with the kids each day as San Diego requires trash separation. We don't have room for more cans to separate in the classrooms. Families providing all food is the best! It alleviates allergy issues, food preferences, quantity, etc. They pack snacks separate from lunch. we recommend reusable containers. A company called Mabels Labels can do a fundraiser to get parents to have all items marked with names! Maybe a local Tupperwear rep can do one for containers? Good luck in your decision!