If you’ve ever popped open a can of soda, you’re surely familiar with the tab at the top of the can. And if you’re like most people, this tab has probably annoyed you at one point or another, especially if it becomes detached and then falls into the can with the rest of the liquid. As it turns out, you haven’t been using the tab properly. The tab on soda cans was designed to be flipped over again and used as a holder for your straw. Who knew, right?