I know to take food and water. what else should i take.
Chains are a pain in the **** - they break, you can't drive more than 30mph, they won't fit a modern compact car (not enough room in the wheel arch to fit them). Truckers fit them because they have to. If you expect ice, winter tires with studs are probably best, but those are often banned during summer and on some bridge decks. You can have a duplicate set of rims, or let the tire shop store and swap tires for you. 4WD won't help you stop or take corners on the highway, but will get you out of an unplowed parking lot and up hills. A higher ground clearance will let you drive through a foot of fresh snow that would build up under the body of a small car. But there's not going to be a foot of snow anywhere normal - the authorities plow it or close the road. Unless you have clients living in the hills. I took a Prius to the Yukon in February with winter tires - it was fine as long as I stayed on the road and didn't try to drive on the shoulders in 6 of snow
the north korean army would be decimated if they attacked south korea anyone that says the us troops would barely be a speed bump for nkorea have never been to the dmz
Tire Chains are illegal just about every where except the Rocky Mtn areas. They tear up the roads, taxpayers get mad. Four wheel drive is the way to go.
I live in NE Ohio southeast of Lake Erie. I can tell you about driving in snow. I haven't used snow tires in 40 years. Just regular all season radials. Even my two wheel drive pickup doesn't have snow tires. I don't have any trouble getting around.
Get snow tires and keep chains in reserve. Your traction in snow will be better with snow tires, but less traction on dry pavement. When buying chains, don't get the cheap ones most auto part stores keep in stock because they will wear out quick or fail. Get old fashioned steel chains. Keep considering a 4wd which may also may find chains useful in very severe conditions.