My budget is $180 per week for two adults and two teenage daughters, including pet food and health & beauty aids. I often go over to the $200 range.
I have used TheGroceryGame in the past, but my lists stores would have required me to shop on Sunday through Tuesday. My schedule limits shopping during the week, and although I have done it twice for extended periods of time, I am not willing to shop every Sunday. That said, I monitor the GG forum regularly and use that for cost savings in all areas. I also use TheCouponMom for a guideline in making my weekly list. Use of coupons, the weekly ads, and going to a couple of different stores has also helped alot.
I am always looking for ways to cut this down. My local newspaper has limited coupons and no store doubles here so I have been unable to get as low as many others have done.
Interesting, here is what the USDA says is the weekly/monthly average cost per person in 2009 based upon age. I fall in the low cost to under the moderate range. While I will continue to try to reduce my spending in this category, using these numbers just helped me stop chastising myself for my budget. This link might provide some interesting information.
http://www.cnpp.usda.gov/Publications/FoodPlans/2009/CostofFoodJan09.pdf