Deathwatch: Windscreen wipers
The McLaren Group (Formula 1 cars, etc) are planning to get rid of wipers with new technology swiped from fighter jets which basically uses high-frequency sound waves to budge muck.
In effect, the frequencies create a force field so that small things are repelled from your screen. Not only that, by eliminating the weight of wiper motors, a car's fuel efficiency would be improved too. And you wouldn't have problems with wipers welding themselves to the glass in cold weather.
This system will appear in McLaren's cars as of 2015. While initially it looks like it'll only appear on supercars, you can assume they'll want to make money on the patent by selling the technology to other car manufacturers.
"The obvious way of doing it is to have an ultrasonic transducer in the corner of the windscreen that would excite waves at around 30kHz to bounce across the windscreen," said Paul Wilcox, professor of ultrasonics at Bristol University's faculty of engineering.
"You would not be able to see anything moving because the amplitude of vibration would be at the nanometre level," he added.
Back in the 80s, Japan's Motoda Electronics Company patented an ultrasonic windscreen wiper system, but that didn't go into production, so we'll just have to see if there's a lawsuit or anything.