Ask HN: How do you deal with seasonal affective disorder?

I've known I've had this for a few winters now and I can feel it coming back now that it's getting colder. I do all the typical recommendations (Vitamin D3+B12, exercise, staying hydrated, getting 7+ hours of sleep every night) but I'd like to get any other tips on how to deal with it. Did you move somewhere to deal with SAD, and if so where, and did it help?