I don't really know right now. We don't have our own space to store food right now so we don't actually make a big grocery shopping trip all too often at all. Since we both work in retail we usually just pick up food after work to make for dinner.
When I actually went grocery shopping every week, I couponed like crazy. I ended up usually buying a full cart of groceries for less than $50, which was my maximum bi-weekly budget for groceries.