At 17 months old, Small Sophie finally gifted me with a mess on a white carpet. (She thought it was a game to run away as I chased her with a diaper. I got tired and rested. She also stopped— and made her mess. And stepped in it. Yuck!) Until today, I had been fortunate enough that my daughter had only poo-ed out of her diaper once, and that was on hardwood flooring. Hardwood is easy; pick up the offending object(s), wipe the floor, and let dry. Carpet is different, and white is especially annoying to get stains on. Fortunately,…