Why Mess Stores Up?

We went to Kohls department store today briefly, to find some
slippers (and learned that they only sell 'em around Christmas,
stupidly enough). As we were walking through the store, we noticed that people threw shoes, towels, and other things all over the place. Of course, I couldn't help but try to organize stuff while Tom was looking at other things. This drives me crazy!
How difficult is it to simply place things back where you pick them up from???? Granted, it doesn't have to be perfect, that's what store clerks do at night, but it takes them a LONG TIME to straighten messes from inconsiderate people!
So, next time you're shopping, think about the clerks making 6 bucks an hour who have to stay until 2am folding clothes from careless people "in a hurry."