I spend so much more and get stuff I don't want or need because I have a coupon than when I don't . I buy what I want, not what i have a coupon for and I keep everything ( money AND stuff) under control. Just like with bulk buying. I don't have room to store 24 rolls of paper towels or a 5 lb. Jar of peanut butter, so I don't buy it even though it may be a few cents cheaper.