When going outside: layers layers layers, hat and gloves make a big difference. Some sort of ice grippers for your shoes for when it inevitably gets icy.

Find some outdoor activities to do, even if it's just for short stints, it can be quite beautiful. Make an excuse to get out, go to a new resturant/cafe, etc.

When it's blizzardy use it as an excuse to cuddle up at home, make comfort foods, wear pajamas all day, binge Netflix, read, and other self care type activities depending on your tastes.

For the car: ice scraper, blankets, bag of kitty litter (traction aid) stuff like that. I also carry a heavy older coat for those times when you go out with a lighter coat, but might get stuck in the cold. Keep the washer fluid topped up, if you end up driving in slush/salt mix the windshield gets dirty quick and will eat up washerfluid quickly.

If you're not used to driving in snow slow down, do not feel the need to keep up with the idiots, if needed pull over and let them by.