Hi there,
I don't tan, although i have thought about it to combat my SAD. My theripist told me that i was the worst case of SAD she had ever seen. I have a lamp, but i rarely use it (it is just so big an awkward). I found when i moved out, it was really bad, because i was living in a basement suite. One thing that i have found that has helped me out a lot, and is quite inexpensive is changing the lightbulbs all over my house from regular to G.E. 'Reveal' white lightbulbs. You would be so surprised at how much of an instant improvement it is on everything. Although i do wish that i lived in a house that was made entirely out of windows so the light would come in all day