Earth Hour is set to take place at 8:30pm tonight, lasting for 1 hour. Over 126 countries are on board to participate in Earth hour, shutting down all non-essential electrical appliances and lights. Lest you think that you'll be the only one flicking the switch or unplugging, wikipedia has a partial list of world landmarks that will also be going dark for earth hour, including Big Ben, The Eiffel Tower and right here in my own back yard, the Space Needle.
Will your household be participating? What do you propose to do with your 60 minutes unplugged?