I've used light therapy at the recommendation of my therapist.

I got this system at Costco for about $40 last year http://www.verilux.com/light-therapy...appylight-2500

You're supposed to use both at the same time, but it gives me headaches. I use just one at a time for a few hours every day at work. It does help. I actually ended up giving my second one to a friend who also loves it for seasonal depression.

If you can get one for an affordable price, I recommend giving it a try.