It will also be better if you will replace your lights if you still incandescent bulbs. These bulbs usually release 98 percent of the energy that they consume into heat so you should consider CFL or LED bulbs.
Lighting is usually ignored because a number of people believe that you can turn on the lights for 24 hours without worrying about your electricity. Your bulbs might be small, but they consume a large amount of energy.
This is definitely a big problem for the individuals who are not using solar or wind energy as alternative sources. They are pretty expensive until now so some folks think that it will not be beneficial to regular households.