Add Yahoo as a preferred source to see more of our stories on Google. Why do plastic milk jugs have a circular indent on the side? (KTXL) – Just about every plastic milk jug has a circular indent on ...

This article may contain affiliate links that Yahoo and/or the publisher may receive a commission from if you buy a product or service through those links. If you’ve never heard of “winter sowing,” ...

You’re at the store, and you grab a jug of milk to plop in your grocery cart. You notice there’s a circular indentation in the container, so you take a peek at a few others. This little dent is ...