I've never tried the lights, but I do try to get outside in the winter as much as I can. Unfortunately, I don't live in a winter wonderland type of a place. Indianapolis gets wet and cold in the winter, but we don't get enough snow frequently enough to allow for skiing or snowshoeing, and I'm not a big fan of riding in temps lower than 35 degrees. So last year I took up running again after a long hiatus from it. I think it helped. I at least made it to February without totally losing it. I also exercised in general as much as I could and really stuck to my schedule in that regard. There was no "but wouldn't it be nice to just go home after work and snuggle with my cats."

Still, I think it would help me if I scheduled a long weekend or vacation in February/early March. That's usually about the time I start to really climb the walls. And I'd be willing to try to lights if my SADD continues to worsen as I get older.