With the rise of the air conditioner, conventional methods of cooling a home have fallen out of favor. But with the cost of electricity going up, more people are reconsidering the old methods. Here's one for you: window awnings. A new study from the Professional Awning Manufacturers Association found awnings can reduce the use of cooling energy by as much as 26 percent in hot climates and 33 percent in cold climates. The study measured seven cities across the climate zones: Minneapolis, Boston, Seattle, Albuquerque, Phoenix, St. Louis and Sacramento. I'm surprised the greatest savings were found in colder climates like we've got here in Boston. It has me thinking of a good summer project for my home.