I posted the thread the other day about how I can get the Planter's peanut butter for free when the coupon says "do not double." Two people replied that sometimes it just goes through even though it says "don't double." I inquired at the store today and got more information. The computers are set to double the coupons up to $0.99, however when the coupon says "do not double," the cashier is to press a key and override the doubling. So for all those out there that are able to double coupons when you aren't supposed to be able to, you are lucky ducks! It seems like if you get a cashier that isn't paying attention, you will luck out. I, unfortunately, have not been so lucky. Just keep this info in your mind when planning a shopping trip and budgeting. Plan for not doubling and hope for the best!