Everybody poops—around a pound a day, in fact—and everybody wants a clean butt. Good old TP has come a long way since the first commercial toilet paper was marketed 162 years ago, and you might be surprised at how much Research & Development goes into each roll. We recently talked to researchers at Proctor and Gamble about the secret sauce that helps Charmin keep your rear-end feeling fresh. And by secret sauce, we mean secret fake poo. Here’s the inside poop scoop. br br Learn more: pops.