Be sure to check out this site: www.thegrocerygame.com
It is a paid subscription site, but you get a free 4 week trial period. The staff pulls together the best prices at your area stores, collates them with available coupons, and sends out lists of good prices, great (stock your pantry shelves) prices, and free items.
It is based on buying about 12 weeks of groceries, health & beauty supplies, etc., at a time, when prices are rock bottom. The message boards are free and anyone can register (or not) and access them.
If you do decide to sign up, I'd apprecite the use of my email as a referral - kykate at yahoo dot com. Enjoy!
Kate