If your house is like most, it has a few rooms that are consistently too cold and a few rooms that are always too warm. That's exactly the kind of scenario that the Smart Vent seeks to correct. Retrofit any of your home's existing vents with a Smart Vent, then connect them to your home wireless connection or programmable thermostat. The vents will communicate with each other to ensure that hot or cool air makes it into the rooms that need it most, keeping you and your family comfortable all year round. Available on Amazon; $85.