I visited such a store today with my wife when we took her grandmother errand-running. The Super Dollar Tree down the street from her house is where she stocks up on her birthday and holiday cards a few times per year, plus whatever other impulse items she can hoard on her way to the register. As she did her thing, I wandered off to check out their selection of books, to see what works had been downgraded from original retail price to rock bottom. I’m in no danger of running low on reading matter anytime soon, but the thrill of the scavenger hunt is tough to resist. One never knows when a diamond in the rough might turn up/ My last such acquisition was a dirt-cheap copy of Stephen Colbert’s I Am America (And So Can You!).