Holding your car keys to your head to increase it’s range. This is a classic myth that many have heard of but never tried out themselves, usually because holding keys to your head makes you look a little ridiculous in public.

Although it sounds rather absurd, it does actually work, and it can be explained scientifically. When you hold your keys up to your chin, the oral cavity and fluids within your skull act as a conductor, albeit a rather poor one, to extend the range of your key by several car lengths.

Whenever you get a chance, try it out for yourself. Just be sure there is no one else around who might be looking at you.