One of the big things is just, don't underestimate snow and ice. It can be pretty! The first snowfall is a magical experience and you can make hot chocolate and french toast and whatever and enjoy it. But if you're driving or even walking when there's frozen water around, it will not hesitate to ruin your day.

If you don't have experience driving in snow, wait until the roads are clear and dry. We clean up pretty quick after even a big snow storm, so just stay home for a day or two and wait it out. (Be prepared to do that if necessary, btw.) Even if you do know how to drive in the snow, I would still not go out before the plows have a chance to clean up unless it was an absolute emergency. You do not want to get in the way of a plow; they do not stop and they do not feel remorse.

If you're walking, even in the city, you really need some shoes with decent tread. If you try and walk around with sneakers, you will slip and fall on your ass, you will impact the pavement with more force than you thought was possible, and it will hurt for days, in the best case. Worst case you break one of your favorite bones. Give ice due respect.