>>ivank+(OP)
Occasionally (3-5 times per winter) I go to the nearest tanning bed room in the nearby gym, choosing the bed with the least UV and the most brightness.
Yeah, I know, tanning beds are imported directly from Hell to give us skin cancer and stuff. But a sunny day in LA or Barcelona summer will give you much more UV than that. And it really helps with the aforementioned SAD.
>>atemer+xe1
Agreed about strategic tanning bed/booth use in winter. I don't understand the worry when you can precisely dose the minimum light you need vs. A random amount of much more ionizing sunlight.