What I like about it is the kind of information we can pull out of it on a moment’s notice—all those numbers. For one thing, we keep a sixty-five-week rolling history of every single item we stock in Wal-Mart or Sam’s. That means I can pick anything, say a little combination TV/VCR like I use here in my office, and tell you exactly how many of them we’ve bought over the last year and a quarter, and exactly how many of them we’ve sold.
