Make use of natural daylight. Before turning on the lights, check to see if there is sufficient sunlight. It’s free!
Here are some helpful industry links to help you save on your energy costs.
http://www.energystar.gov
http://www.lamprecycle.org
http://www6.homedepot.com/
http://www.earth911.org
http://www.epa.gov
http://www.tcpi.com/recycle.aspx