For many people, the power bill is one of the most expensive things you will pay each month. If you are going to cut costs, then you might start there. So how do you save money on the power bill? Besides the obvious things like cutting off all appliances when you leave the house, you might try to do things to keep cooling costs down. Air conditioning is expensive, so maybe you can get a fan or open a window at night. These things will cut a significant amount off of your power bill and will help you make ends meet.