I like working in the dark.  When I’m doing my writing or session work, the low light allows me to stay inwardly focused.  I have red bulbs I use for nighttime keyboard work without impairing my night vision.  I have two huge windows but keep privacy curtains drawn to keep the room dim.  Then there are days like today, when I want to see every inch of everything on my desks.  I moved my one big standing halogen lamp out of the bedroom and into the office and now it’s like daylight in here!  So now there’s no excuse but to get the work done, now that I can see it, huh?