Double your car-remote range
And now for something completely different.
From New Scientist:
My son-in-law discovered a strange property of the remote control that switches his car alarm on and off. By pressing it firmly to his chin, he can increase considerably the range at which it works. Not believing him, we experimented with other chins. It works, and in some cases the range is doubled depending on the type of car alarm. How does this effect occur?