Earth Hour 2009 is tomorrow at 8:30 PM your time zone. Turn off all your non essential lights and electric items. Save a few pennies and lets see how much we can achieve when we all work together.
Here is some info from the Earth Hour site:
Earth Hour began in Sydney in 2007, when 2.2 million homes and
businesses switched off their lights for one hour. In 2008 the message
had grown into a global sustainability movement, with 50 million people
switching off their lights. Global landmarks such as the Golden Gate
Bridge in San Francisco, Rome’s Colosseum, the Sydney Opera House and
the Coca Cola billboard in Times Square all stood in darkness.