The Orbit family of Bluetooth trackers will help you locate valuable items in seconds using a free iOS or Android app. The various shaped trackers physically attach to a wander-prone item. From your smartphone, use the app to page that item when it goes missing within a 100 foot range. The tracking device can also be used to page the smartphone in reverse, even when the phone is in silent mode!
Orbit Keys is a small round device that attaches to a key ring. Stop losing your stuff?