Um, how do you spend money at a Walmart and not buy anything?
If you mean buying crap, then I can see your point, seeing as "anything" you buy there can mean "nothing" if you would rather have something better.

If I had a choice between going naked and buying Walmart, unfortunately I would have to drag my behind to a nearby Wally World to get some clothing, because I don't want to get arrested for public indecency, and damn it, it's getting cold!