I recently acquired a product called the
Kill A Watt Power Usage Monitor. This product will plug into any outlet in your house and monitor whatever electronic device you have connected to it. It will allow you to determine if you have "vampire" electrical devices that draw power even when they are turned off. It will also estimate the KWH for a device to give you an idea of how much power a device pulls. I intend to use this throughout my house and report my findings along the way.