Unless you live under a rock, I am sure you’ve heard of and probably even used WD-40 at least once in your life. It has so many everyday uses that we use it for such as the car, cleaning and unsticking rusty metal, and the best one that probably everyone has used on: anything that makes annoying noises, like a squeaky door. You may not be aware but it has a multitude of other uses. This is the king of hacks, because it’s not just for the squeaky door anymore. In fact, it has a multitude of other uses you probably aren’t aware of.