I agree with Jennifer that a lightbox is great. I can tell a huge difference in the winter. I have started lists in my journal "fall is" winter is" and "rain is" to try to respond differently to the weather. Like for example too see rain as a million little drops of adventure because waters been around forever and travels all over the planet.

I also write myself a note every day of the summer to open on the corresponding day of the winter with encouragement and directions for what to do that day sometimes. They are notes from summerbritt to winterbritt