As winter nears, it's time to think about your windows and how they affect the energy-efficiency of your home. Windows can be a weak spot, especially if they're older, thinner, or single-pane. By replacing them with energy efficient models, you'll be saving a bundle this winter. However, replacing all of your windows is a big investment, but there are several other smaller steps you can do for less money. Consider these options: Storm Windows Energy efficient windows can cos