If you do any highway driving, it's a good idea to have an emergency car kit with things like candles and matches (and a couple of tin cans to put them in and also use to melt water to drink), a blanket, extra hats, mitts, flashlight, granola bars, etc. Oh and a shovel in case you end up in the ditch. A tow rope wouldn't hurt either. And some kitty litter for traction.
For the house, clean out the eavestroughs now so there are no surprise floods around your house when all the snow melts off the roof.
For the yard, if you have any tender plants you hope to keep, mulch and cover.