6. The Hole In A Soda Pop Tab
You may have thought you understood all there was to know about the purpose of a soda can, but chances are you will be surprised to learn about this one. Every can of soda comes with a tab for easy opening of the tasty beverage. While these may come in all sorts of colors and different details on their corners, every single one of them has a fairly large hole in the top. Although this hole does seem to make it easier to get your finger wedged beneath the tab to pop the top on your soda, its intended purpose is actually to serve as a place-holder for your straw. Simply spin the tab around over the opening and slip your straw through. Boom!