* Watching Tom Snyder's "Tomorrow" show. (This show is bad enough to agitate almost anyone. This principle can also be extended to other shows which make you violent--almost any one will do, actually.)

* Making your bed.

* Leaping onto your mantlepiece from a sitting position in the middle of the floor. (Note: This one is not for beginners.)

* Doing your laundry a lot. (This isn't exactly too strenuous, but waiting around can help even you shed pounds fast.)

* Sliding down banisters. (A friend of mine tells me that the two best in the University are in Sever and in Med School Building A. There isn't actually too much real exercise involved in this, but these banisters are so slippery that the experience is bound to bring on waves of adrenalin rushes.)

* Trying to scale the sides of William James barehanded.

* Rolling joints. (Note: My sources tell me this is great for developing manual dexterity, but it is only effective if you do it for other people. Apparently, if you do it for yourself, the net physical gain is minimal.)

* Trying to build a snowman in your room. (This usually requires a lot of speed--or a lot of mopping up.)

This list, of course, is not exhaustive. In addition, many may object that the best winter sport of all is noticeably absent. Sources tell me, however, that some kind of partner is usually needed for this one, so I had to leave it out. Stay warm, stay healthy.