I do some extra stretching on days I don't hit balls. 

Mostly putt.  I'll pull out the net and strike a few in the yard from time to time, but when the snow starts to fly I'll be putting on the carpet, and chipping indoors with some foam balls.  I think there's a covered range that stays open year round around here, so if it's not too miserable out I'll swing by there.

Some good old Tiger Woo on Wii is fun as well, although not too beneficial.

What do you do?

Josh - We sound pretty similar. I have a heated range facility by me as well and hold a membership there so I have to go. Here in michigan sometimes the weather does get so bad I can't get outside at all, but when that happens I just use the short stick inside. I figure you can never get enough practice with the putter. My wife bought a little game called "putter pool" you put on the ground and play like billiards. That's actually a lot of fun!

Golden Bear 1960..........brrrrrrrrr.

Deno

Deno - Are those early model FootJoy WinterSof gloves that Jack is wearing?

Todd

Look like old snowball makin' gloves to me.  Leave it to Jack to be determined to practice.

Deno

That is AWESOME! I love it.

I always do my pregame strech in the club house. and i always walk in the winter to keep the legs loose. and in between tee shots i'll do a streach or two. I do extra practic swings. and just relaxe and figure in and extra club on most shots.

Work on flexibility, treadmill sessions, and light resistance training.  Keeping the core, shoulder, and leg muscles in shape for the upcoming season.   As for the swing itself, I generally chip and putt indoors to keep the contact point fresh in the muscle memory.

Deno

Work on Flexability, core.  I will pull out the wii,  if you pay attention on your swing you can at least keep your range of motion plus its kind of fun. Also love the pic of Jack.

love the pic of the Golden Bear....lol