When I go shopping at Walmart I bring a BIG stack of coupons and small stack of money

 This statement is very true. but it took me a while to make  this true. Walmart is not a easy place to coupon at. No doubling and no bogo sales. But they offer price matching and roll back prices. You need to use them to  your advantage. I will go and cout out items before a shopping trip. I had to walmart is the only supercenter in my area. No target, no supermarkets.