Recently someone mentioned the Kyoto treaty trying to connect a completely separate issue from his argument. Well I made a reference to the fact that I replaced 7 of my light bulbs with compact florescent bulbs. Regardless of your opinions on global warming, and the environment, being liberal or conservative, I actually recommend everyone change at least some of their bulbs to compact florescent. If you care about the environment then getting as many people to change will cut energy usage, and possible emissions.
If you care about finances then by changing one light bulb you cut the cost of the use of that bulb by 76.7%. If you hate the energy industry then changing as many bulbs as possible will mean that they make less money.
I bought a 5 pack from Sam’s club, and it cost me $16. That is $3.20 per bulb. If each bulb is used an average of 8 hours a day, you will save over 55 kilowatt-hours each month. (Or 660 Kilowatt hours per year.) At 5 cents per kilowatt-hour that equals $2.75 each month. That is a 17% return on your money each month. Or saving $33 a year on a $16 investment. (This is based on a 14-watt bulb that equals a 60-watt bulb.)
Getting as many people to switch as possible will cause the supply/demand ratio to force prices down, and reduce the chances of brown outs. I cannot see a downside to this. (Other then affecting the energy stocks.)