Binder clips make cheap and easy "chip clips."
Don’t waste your money on fancy chip clips. Head to your home office or “junk drawer” and find a binder clip. I think these clips keep your bags sealed much tighter and don’t go flying off when you bump them into your shelf. The binder clips come in a variety of sizes (and even colors) so having several on hand can help you with household paperwork as well as household snacks.