Energy is very important in our daily life. We use energy for almost everything we do. However, energy is limited. We should do the following things to save energy. First of all, we should use  energy saving light bulds in our house. It will help us to reduce our electricity bill. Second, we should turn off the light when we don't use it. Fimally, we had better reduce our eletricity bills. Moreover, we ought to reduce the use of fossil fuels. In short, we should try our best to save energy for our future and for our planet's future.