Somehow I can't bring myself to do the coupon thing, even though I'm sure I could benefit from it. I would also add that if you are spending money on something you wouldn't have bought, and probably won't use, you aren't really saving any money.
Also by buying ingredients and cooking for yourself you save money and eat better. I remember impressing Shane because if I went shopping I would get twice as much stuff for less money than he would.
Some of that was that I would compare prices on items, something he never learned, and I would buy ingredients rather than processed 'food'