I feel the same way about the coupon thing. I won't buy something just because it's virtually free if I'm not going to use it.

Kroger sends targeted coupon mailers out every week or so. Obviously, they track your purchases through your shopper card. Those coupons I use more often than not, and if I don't need something before the coupon expires, I'll put it on the shelf where the product is located so someone else can benefit.