Attach this "Eco Button" to your PC and it will send your computer into power-saving mode. You know, the mode that you can already send your computer into by pressing the power button, selecting an option from a menu, or closing a laptop's lid. Even better, the Eco Button is illuminated, the better to remind you that you're wasting more of the planet's resources unnecessarily just by keeping it plugged into your computer's USB port.
"One small click[;] one big change" is the company's motto. Too bad the click that would make the largest change would be the one that powered down their webservers forever.
Fortunately, the Eco Button doesn't seem to actually be on sale yet. Let's hope it stays that way.