I went around my friends house, mainly talking about the old light bulbs, and the amount of light used in the room.
In the picture below, there 6 lights powering the room, 3 of them aer the old spiral kind, 2 are the new eficeant kind, and one is a chrismas tree, with relitivly low energy lights.
The top picture has all the lights on, and only a sleeping dog in the room. The picture below that has replaces light bulbs, and only 1 out of 6 are on. I have encouraged my friends to keep, all the lights of or only one on, especialy when no one is in the room.