you can get some great coupons (every week) from the
Coupons, Grocery Coupons - The Grocery Game :: Home You don't have to be a member. Their membership is great though. They will tell you when the stores around you have the lowest prices on items and when to use certain coupons to get the best deal possible.
Also, if you use Pampers diapers with your kids, enter the codes off of every package of pampers products (wipes, diapers, swim diapers...) You can earn free stuff with those points. One of the new items is 200 4x6 photo prints from Shutterfly. You just pay postage. I figured I am using pampers, I might as well keep track of my points and get my pictures printed. They have a bunch of other stuff too.