In John Maxwell’s book How Successful People Think, the story is told of Sam Walton, founder of Walmart, when the store chain was just taking off.  Sam took a couple of his colleagues, regional store managers to visit some of the competition in Huntsville, AL.  Don Soderquist (later, CEO of Walmart) related the story:

“We went into one [store], and I have to tell you that it was the worst store I’ve ever seen in my life. It was terrible. There were no customers. There was no help on the floor. The aisles were cluttered with merchandise, empty shelves, dirty, it was absolutely terrible. He [Walton] walked one way and I’d walk the other way and we’d kinda meet out on the sidewalk. He said “What’d you think, Don?”

I said, “Sam, that is the absolutely worst store I’ve ever seen in my life. I mean, did you see the aisles?”

He said, “Don, did you see the pantyhose rack?”