[Creator]

My idea would be to incorporate Bose' noise-cancellation technology, as an option, into autombiles, fine tuned with a noise gate to eliminate only those high-pitched noises in direct proximity to the driver: for example, the constant yammering from the woman in the passenger's seat.

Reward: A new sofa bed for the living room. I have a feeling I'll be needing one soon.

[Michael D. Grissom]

This has been in many past issues of Popular Science/Mechanics and on Science & Technology TV programs. It works great -- I saw the show!