We buy on sale, have a wall of diet coke in the garage, because it was on sale the last couple weeks. Clip coupons, and at the store it's not unusual for me to break an order up into several orders at the self serve checkout so I can use more then one coupon for the same stuff.

Stuff like meats and seafood we almost only buy when it's on sale. This week it's sirloin tips, so the freezer will get a few months stock of that. Last week it was flank steak and swordfish.

The local farmers markets are starting to go full force which gives us some great chances to save money on food, one has for example ears of corn (local, very sweet and tasty) for 20 cents each, while two major stores each less then a couple miles away are over twice as much and the stuff is trucked in and not as good.

All four local stores do online circulars, so where we shop isn't random, but picked based on what's on sale where.