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Cooling and heating your home is a major expense. Significant savings can be achieved by actions requiring little or no investment, as well as some major investments. Noted below are some links on ways to save, while keeping your home at a comfortable temperature. If interested, visit michaelbluejay.com for an easy way to calculate the cost of running different types of AC systems, as well as other electrical devices. The Environmental Protection Agency also offers some free tools to assist in increasing home energy efficiency. Energystar.gov/homeadvisor recommends home improvement projects to increase energy efficiency. Energystar.gov/home offers a room-by-room house tour that identifies opportunities to cut home energy bills.