Remember the first Back to the Future movie? At the end of the film, Doc Brown returns from the future and his DeLorean is outfitted with a device called "Mr. Fusion" that transforms household waste into fuel for his car.

Another '80s movie guy, Arnold Schwarzenegger, is featured in a promotional video for a California startup called MicroFueler that might make the "Mr. Fusion" idea a reality.

MicroFueler is essentially a home-fueling station that lets you make E85 fuel (for use in compatible vehicles) out of garbage or leftover beer or wine. Shaquille O'Neal has been among the startup's early investors.

So will this be the one that will be a game-changer? Who knows! But the idea of powering up at your own home has long been a staple of science fiction. Just think about the original Star Wars with the home-power plants that allowed Luke Skywalker's family to live off the grid.

Back in the real world, the MicroFueler qualifies for a federal tax credit that means it pays for itself in 24 months. This is one option that could be green both environmentally and for your wallet!