A handyman should never be without a can of WD-40, just for its lubricating properties and ability to loosen rusted parts. But there’s a whole other way to use it that you might not know about yet.

Did you know WD-40 was created as a nuclear missile lubricant during the Cold War era? Its name is an abbreviation for "water displacement, 40th attempt." Today the most common use for WD-40 is to ...