I liked the idea that few people mentioned in other threads: taking a small thermos of hot tea (or coffee) for the commute ride on cold days. I never occurred to me!
Speaking of sweaty hands and AngrySaki original post: I'm thinking about cutting the cuff off of a pair of winter gloves to allow for some air circulation. The top of the palm can easily be protected using oily cream, it's really the fingers that need warmth but all really warm gloves have thick cuffs and no air circulation and cause my palms to sweat too much.
Adam