Every time I look at a TV during the last few weeks, I see ads for the Perfect Tortilla, a wavy mold designed to help you make lovely edible bowls out of a regular store-bought tortilla. At home, visiting family, even at a sports bar: the ad is everywhere. What makes it annoying isn’t the spokesman who resembles a bald Billy Mays. It’s that this product is useless, even by the rarified standards of as-seen-on-TV merchandise. [More]