And I think it is even possible!

1. Simply have a very small rf or other type of transmitter in every product - or simply tape "your" rf transmitters to all your items -

2. then have the transmitters in all of your items ping the "ether" - like you can zero in on cellphones now. 

3. You have an interface to your own house, as part of "My Google".

4. Google integrates and improves various "automated bots", to give various personalities to the responsed google gives back to you.

Wham!  Instant "oscar the grouch" google keyfinder!