This is probably one of the most commonly known habits that's discussed on sustainable living, to simply turn off lights in rooms that are not used. Yet it seems people still have problems tackling it. They often forget, or they'll think the usual "I'll be back there real soon." I even know some people who argue that they just don't like being in a house with so many dark rooms. It makes me think that perhaps just getting people to remember to turn of the lights isn't enough, maybe we should show them an alternative to lighting the room.
The sun has worked in the past, why not now? Plus according to studies on the eye, the spectrum of natural light creates less stress on our cones and rods, which is better for protecting our eye sight. So instead of turning on lights, why not just open the curtains and add a couple more reflective surfaces to extend the light usage.
