Because I have absolutely zero self control and was demolishing the snaps at an alarming rate, I asked my husband to cut me off. Even if I begged. Even if I pleaded. Even if I said "I'm an adult and I can do what I want!"
This was his solution...
[note taped to the bag of snaps that says "NO." in huge letters, accompanied by a chibi drawing of himself standing between two of the nuts.com avatars. They all look appropriately grumpy]