"Total before coupons: $230. After coupons: $38. I'd combined high-value store coupons with manufacturer coupons so that most of the merchandise in my cart was free. The cashier carefully folded the receipt, smiling as she handed it to me. 'Great shopping. You saved almost $200.' This is what I do, what I've been doing for more than thirty years. My question: Why doesn't everyone?"