Switching off appliances doesn't stop the flow of electricity -- while plugged in, they can stay on indefinitely in power-sapping standby mode.
How much power? The Belkin Conserve Insight gives you solid data about how many watts a device is burning, how it's affecting your carbon footprint, and how much it's hitting your wallet. Check out this Gadget Lab video to find out how you can figure what (or who) is the biggest electricity hog in your household.
