I don't really "get" Wal Mart.
I have shopped there on occasion, but I don't find it to be any cheaper than other grocery stores. Sure, they have some cheaper items, but getting in the car, driving all the way over to the big box store part of town is more costly than just paying an extra 32 cents for the item at the Safeway.
In fact, I have been watching my spending very closely this year, and we spend less money shopping at Whole Foods than we do at Safeway. I can get fresh, organic vegetables at the Whole Foods for cheaper than the Safeway. Plus, the quality is a hell of a lot better.
Whole Foods gets you with the prepared foods, which we don't really buy. There aisles are not that much more expensive. I can get those bagged cereals reminiscent of Malt-O-Meal at the Whole Foods for $2.99 a bag. Each bag has like 2 times the amount of a normal $4.99 box of HFCS crap from Safeway.
I don't understand the hate for Whole Foods.
Back to Wal-Mart. Sure, they have a lot of cheap stuff, but the key word is "cheap." Most of the crap at Wal Mart is unnecessary. People convince themselves that they need shitty disposable crap.
I can understand grocery shopping at the Wal Mart if it is close, but don't act like you an get 3 times the amount of food at Wal-Mart. It isn't really that much cheaper.
Plus, Wal Mart is hell on the eceonomy.
Read this:
http://www.fastcompany.com/magazine/77/walmart.html