Mini Power Minder

If you're trying to do your part to cut down on your power consumption, whether it's to save money on your electrical bill or to try and help save the environment, it's always annoying to find yet another appliance that constantly draws power even when it's supposedly turned off. The Mini Power Minder is a pair of outlets. When the device connected to the top outlet is turned on, the bottom outlet is given power as well, and when the top device goes off, so does the bottom outlet. This way, when you shut down your computer (for instance), whatever you've got connected to the bottom plug (like a printer or some speakers) will also be turned off -- and you'll know it's off for sure! $14.95 USD. (Via Treehugger.)