The WRX gets washed, waxed, and readied for sleep mode. It will get used until the first snow flies, and then stays off the roads until spring rains wash the salt away.
The Forester is another story. Mount a set of full on snows, swap the back half of the exhaust to stock FXT (summer is WRX mid, Prodrive back box), and toss on the smaller swaybar (Plow rather than over rotate). I always carry a tow strap, jumper cables and the like, but will also toss in a snow broom and sometimes a plastic grain shovel. Lighting is a supplemental set of quad FF1000s, and the HAM radio complements the CB for communication purposes. Yeah, let the snow fly!
As per the snows, WAS running Hakkapeliitta 5s, but this winter will most likely be on either Hakka Rs or X-Ice 3s. There's also set of Hakka 5 studded if it gets to the point of what it was in '009/'010
Winter Storage, with the BMWs under cover...