Check this article by Energy Saver to find out how to cut down your electric bills.
This guide shows you how easy it is to cut your energy use at home and also on the road. The easy, practical solutions for saving energy include tips you can use today — from the roof and landscaping to appliances and lights. They are good for your wallet and for the environment — and actions that you take help reduce our national needs to produce or import more energy, thereby improving our energy security.
Source: Energy Saver Guide: Tips on Saving Money and Energy at Home | Department of Energy