Learn how you can upgrade to energy efficient products and make other home improvements that can deliver significant energy and cost savings, and help you transition from fossil fuels for a cleaner, healthier and more comfortable home. Households and businesses can receive rebates or discounts on energy-saving products. Make sure to get Energy Star-rated ceiling fans because their efficiency can be up to 50% higher. Vince and Mark were able to get everything installed swiftly and efficiently, with minimal disruption. Open curtains on the south-facing windows during the day to allow sunlight to naturally heat the home, and close them at night to reduce the chill from cold windows. The customer had spent an hour and 45 minutes staring at the Windows XP screen saver. Changing accounts to tap into a 20-basis-point increase, for example, would result in an extra $200 per year in earnings for a customer with $100,000 in savings. Banking analysts say that a switch only makes sense if a consumer is moving enough money - and making a big enough jump in rates - that the extra interest outweighs such hassles. The maximum contribution amount that may qualify for the credit is $2,000 ($4,000 if married filing jointly), making the maximum credit $1,000 ($2,000 if married filing jointly).