Okay, maybe you used to laugh as you watched people pull out their coupons at stores but the truth is that using coupons can save you hundreds of dollars every year. Coupons can be used at grocery stores, retail chains, any store where the item is sold. Some stores offer double coupon days, which is an extra bonus. On average, you could easily save from 5% to 15% on a bill for $100 simply by presenting a coupon. Coupons are not just for food items and by scouring your local newspaper you can find coupons for all sorts of merchandise.