I woke up this morning feeling a little melancholy. My mood matched the day: cold, pale and hazy from the intermittent snowfall. I decided to snuggle up on the couch, look up flights to Paris and catch up on my "Gray's Anatomy". But after a few cups of coffee and a handful of likor-filled chocolates, I had a new zest for the day. Carpe diem! So I bundled up and took a walk.