Pennies add up to dollars, and pounds of energy emissions saved by using energy efficient light bulbs can up to tons. That’s why state officials have launched a program to encourage consumers to switch light bulbs in their homes to energy-saving compact fluorescent light bulbs which are known to use only about a fourth of the energy used by conventional bulbs. Department of Natural Resources Director Doyle Childers says it can add up. In fact, energy industry officials say Missouri could save a total of 70 Million kilowatt hours a year if each home changed just one light bulb. They also estimate that consumers could shave about $60 off their electric bills each year if the five most used light bulbs in a house are changed to compact fluorescent light bulbs.