When I saw this video (bottom of page) I thought it must be a put-on, another Infinite Solutions. In it, it’s claimed that you can extend the range of the keyless entry for your car by holding the keyfob to your temple (turning your cranium into an antenna booster). Easy enough to test. So I grabbed my keys, stepped outside, and tried it on our car. I’ll be damned if it doesn’t work! Why would you need to do this? If you can’t find your car in a parking garage you can scan the garage while beaming your wireless key into your head to try and flash your lights. Oh, like THAT’S not going to freak out the Muggles.
The linked-to page on Daily DIY has a bunch of other cool car unlocking tricks, like using the air pressure of a tennis ball with a hole poked in it to unlock a car (haven’t tried this one). Tres McGuyver.