What can I do to the outside of my windows to make them more energy efficient?

What can I do to the outside of my windows to make them more energy efficient?

The windows in your home let a lot of energy come into and out of your house. Good things you can do to the outside of your windows is put a coating on them that reduces the amount of solar energy that comes into them. That can be applied as an aftermarket product. You can also plant trees that will shade the windows and the rest of the house. You can also put awnings out above your windows, and that will reduce the amount of energy that comes into the house through the windows.