While you decorate your home and Christmas tree with lights this year, make sure you go green by choosing LED and/or Energy Star lights. They use less electricty therefore they save you money. You can also set your lights on a timer, so they come on when it gets dark and turn off when you go to bed. No need to have them on late at night while most people will be sleeping.
Fore more information on these type of lights, go to http://www.greenyour.com/node/13887. Happy decorating!