Some things you use every day without even thinking have their secrets. Remember those mysterious stripes on bathroom towels? It's not just a decoration — it's a stabilizer strip to help the towel last longer. The circle on the plastic milk jug can tell you if the milk is good or bad. There's a big chance that your oven door is removable: it means you can clean it between the glass, as well.  Learn more about your ad choices. Visit megaphone.fm/adchoices