Where did the phone go?

If, like me, you end up losing your precious cellphone every 5 minutes and end up having to turn the entire house upside down to dig it up again, you will appreciate this.  This website allows you to punch in your phone number, and they will call your phone so you can use echolocution to get to it instead of random search.  Very cool!

Now just remember to not leave the phone on vibrate. Dang. The idea is brilliant though!