Silence is golden.... until it's not.

PROBLEM: 
Finding a cell phone is difficult when it's in 'silent' mode..

MY SOLUTION: 
Have a simple system in place to remotely turn off the 'silent' mode.  One example would be to call yourself and when the voice mail comes on punch in a 2 digit code.  The voice mail system recognizes this and sends a signal to the phone to make the switch.