Never hurts to have too much.
My mom was that way with toilet paper. At any given time there would be up to 10 4-packs of TP in our bathroom closet. She bought a 4-pack every time she went to the grocery store.
Hee! At least you won't run out unexpectedly.
Do you have "buy one get one free" offers over there?I always end up with tons of stuff that way as I can't resist offers!