Change your bulbs

Replacing regular incandescent light bulbs with compact fluorescent (CFL) or LED bulbs is a big energy savor. Incandescent bulbs release most of their energy through heat, while CFL and LED bulbs are more energy efficient and last much longer.CFL bulbs were the first alternative to incandescent bulbs, and they use only about 1/4 the energy of incandescent bulbs. They contain trace amounts of mercury, so they must be disposed of properly when they burn out.LED bulbs are newer to the market. Theyre more expensive than CFLs, but they last longer and dont contain mercury.