Jolt, if you're going out in MA, then I have no excuse!
No dog here, but I love walking in snow, provided it's not the really heavy wet stuff. I've got a warm coat and lined pants, and I found that if I wear fleece gloves and keep my hands in my pockets, my fingers are fine. In fact, I was sweating on my way home from campus on Monday. Now, I just need to figure out what to put on my feet--the wool socks and hiking boots aren't quite cutting it.
Since I have to walk to the grocery store, I'll be doing that at least once a week! I'll look into yoga and see what I can find. I took a yoga class last fall and loved it.