If you are interested in participating in Earth Hour this year, you can go to here to sign up. At the end of this post I will insert the video which tells you more about earth hour but all you have to do is join people from around the world and turn off your lights on March 28 at 8:00 pm (your local time) and keep them off for an hour.
Last year for earth hour I didn't use any electricity all day which included not turning on my computer. I may do the same this year, especially since it falls on the weekend again so I hopefully I won't need to work on my computer. I also remember that I tried to start walking for many of my errands which were near by as part of my efforts to be environmentally conscious. I hate to say that I didn't keep that up although I did for several months. Theresa has been posting her Kermie tips on her blog this year, leading up to earth hour. She has some great tips for going green. I have to believe that doing something is better than doing nothing.