I enjoy using alternative energy sources. Usually they are too expensive to implement, so I just keep doing things the way I always have. They also generally require a lot of time and energy, and frankly, I'd rather spend my time goofing off with my computer.
The Sunsei SolarCharger is a different breed of alternative energy sources. This little gadget sits on the dashboard of your car and makes sure your car battery always has a full charge. It may sound kind of pointless, but the next time you go to start your car and it's dead, you'll wish you would have gotten one.
The two best things about this are the price, and the ease of installation. All you have to do is set it on your dashboard, or suction it to your windshield, and plug it into your cigarette adapter. The price is unbeatable at only $39.95.
Never have a dead car battery again [via crave]