6. On the horizon are "smart windows" using Research Frontiers SPD technology. With these windows in your home, you'll be able to instantly adjust your windows from clear to dark and all levels in between, even eliminating the need for window treatments.
7. The right kind of window treatments can help you save 40 percent or more on your electricity bill. (Source: Alliance to Save Energy) Honeycomb shades, or cellular shades, act as insulators, trapping heat. Sold in single, double and triple-layer pleats, they are also available with reflective coatings that block light. And honeycomb shades are elegant, too. Try "Duette" honeycomb shades from Hunter-Douglas or Symphony Shades, a Vermont company that specializes in energy efficient window treatments.
8. Go outside and see where you can add shade. Install awnings over your windows, build a pergola covered with shade cloth or plant trees. Outside shading is more efficient than indoor shading.
9. Love your waterbed? A heated waterbed can use as much energy as a large refrigerator. (Source: Seattle City Light) Keep your energy costs down with an insulated bed pad. And make sure you make it every morning to keep the heat inside the bed, not outside.
10. Switch from cotton sheets to a linen set. Linen will keep you cooler, decreasing your need for an air conditioner or fan.