My finance's aunt has been doing it for a few months, and she loves it. She said there are certain items you can stock up on, and some things you can even get for free... you also can not be a slave to name brands. If you are trying to save money, this is a great way to go. And in general, keep a coupon accordion folder ad cut the coupons each week... really not a bad way to save money....
Also, my fiance and I switched all of our lightbulbs for energy saving ones... they are more expensive, but they save you money in the long run, and they are really good for the environment... good luck with the grocery game! I heard there is also a site called "coupon mom" or something...