WI$E ENERGY U$E by James Dulley, Contributing Columnist INSULATED WINDOW SHADES SAVE ENERGY AND INCREASE COMFORT These are double-cell light-blocking cellular shades. They slide in tracks on the sides to reduce air flow and drafts from the cold window glass. 26 Cooperative Living/November-December 2015 PHOTO COURTESY OF WWW.CELLULARWINDOWSHADES.COMhttp://WWW.CELLULARWINDOWSHADES.COM