I was also raised with the idea of conserving resources to save money. As I’ve become older, I’ve found myself leaving some lights on permanently for security or safety reasons. Many of my lights are on timers and go on and off all night at all times. That way, someone casually observing my house wouldn’t know when I’m gone on vacation or business travel. I’ve also found that I tend to become lost easily in my own house if I awake in the dark. I keep some lights on all the time just to ensure that I can navigate a little bit if I find myself waking up and needing to do something. For most of these lights, I’ve switched to the new fluorescent bulbs. The energy savings is nice, and in a place as hot as Louisiana, I like not putting more heat in the room.