Thanks so much for this thread! I spend between $600 and $700 per month for our family of 4, including all household products, and I've been feeling like a terrible failure! I keep thinking we should be closer to $400/month for some reason, but it sounds like we're actually pretty average. It's crazy that groceries can be such a huge cost -- that's our biggest expense after our mortgage!
I hear you. It's our biggest expense after rent, and actually approaches what we pay for rent.