Tip: clip coupons for what you buy, not what you don't

We don't spend lots of time clipping coupons but we do watch for coupons for the kinds of things we always need: toilet paper and tissues, canned vegis and other nonperishable foods, and certain restaurants that we like to go to as the occasional treat. What we don't do is buy just because we have a coupon. Let coupons expire if you don't need them and wouldn't have bought it anyway.