Did you know that your computer is driving up your electricity costs, even if it spends most of its time “sleeping” or powered off? It’s true—most home set-ups (even with a surge protector) allow for energy “leaks” that make for bigger bills.

Today the Power Sentry Smart Surge Protector is available for just $9.99 and free shipping through Amazon (via Buy.com). It’s got one always-on outlet, as well as four outlets that rely on one master outlet and power down when it does. In other words, sleep your computer, and all your peripherals get turned off, too. Energy savings, right there.

Now, if only I could figure out which of these 20 cords under my desk goes to my computer….