I thought that this image was very insightful. I went home and replaced 4, 100 watt light bulbs with the equivalent lumen's of low wattage bulbs. I went from 400 watts to 62 watts. I also replaced 120 watts worth of bulbs in the living room with 21 watts of energy saving bulbs.
I need to find some of these bulbs for the chandelier in the kitchen. It takes small bulbs, shaped like little flames.