But can it find my mind?

Popgadget: Personal Tech for Women mentions a product for which I've wished (often in obscene terms). Women, rejoice: Finally, no more "Where's the hoozit?" from the men we live with. Forget the tv remote: Now we can all fight for the transmitter.

Which he will lose.
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SmartFinder, by Evan on devices

"The average amount of time that a person spends looking
for misplaced things over the course of a lifetime is one year."
-- Harpers Index

...The SmartFinder comes with four color coded receivers which can be attached to things like keys, wallets, purses, mobile phones, and TV remotes. They even suggest adhering one to the kids; they're kidding about that (I think). With a remote control transmitter that can send a radio signal through walls and floors to activate the 85 decibel alarm on the receiver, locating items up to 25 meters away, you may never lose your keys again. It doesn't say anything about refrigerator doors, so "Uncle" Rog, who left his keys in the fridge one time, may still be out of luck.

Unlike the "clapper" system I had before, the SmartFinder has a low battery warning. Comes with 2 keyrings and 2 double-sided adhesive pads provided for attaching the receivers to anything.

£29.95 at Girls Shop UK