Midomi.com is a website that lets you search music just by humming. If you forget the name of a song, just hum or whistle the tune for at least 10 seconds, and the site will search its database of user-contributed recordings to find a match. Source
Bald eagle - WTF fun facts. Wow, I have that same quirk. If I scratch one hand, I have to do the other so they feel even. Stretch one side. ...must do the other. Stub one toe.....well usually I'll just step on the other.