If you are not willing to pay for the Logitech Harmony 1100 Universal Remote Control, you would probably want to find something that could help you manage your scattering remote controls. This Remote Buddy has the feature to dock any kind of remote control you have and it can even find the missing keyboard with a push of button.
The only requirement is to stick the color coded device at the remote’s back and all you have to remember is which color represent which remote. After that, if you find one of them missing, just press on the color panel and you’ll hear a chimes coming from the lost remote control.
Pretty useful, you can get this Remote Buddy for a discounted price at $39.98 (Was $59.95).