Winter driving is some of the most dangerous driving that can be done on public roads (other then arguably driving in metropolitan areas). Weather conditions can not only change rapidly but also the road itself. Elevation changes, roadway texture, bridges, and other vehicles all present unique challenges.
What are some ways you can keep yourself and your family safe? First, is vehicle maintenance. Having a vehicle with properly inflated tires, and new windshield wipers with windshield wiper fluid topped off is a good start. Second, a massive upgrade to your vehicle's capabilities and safety (all-wheel drive equipped or not) is winter tires. Winter tires are made of a softer compound which works better in the cold. It helps grip the road better in icy conditions (YouTube that one for watching dudes drive vehicles on ice) They also have more sipping (or cuts) on the treat to help push the water away from the tire, thus keeping more tire contact with the roadway.
Planning. If snow/ice is coming down the best way thing to do is stay out of it if avoidable. Check the weather, and leave early or later. If you must hit the road its critical you change your driving habits.
The most influential factor in keeping you out of a crash and staying on the roadway is twofold. The first is keeping the speed down (preferably lower than what you might actually think is a safe speed). The second is keeping plenty of distance away from the vehicle in front of you. If you do these two things, the chances of you arriving alive have just drastically improved.
Skills when things get wild - the best piece of driving advice I have received is “aim high on the steering wheel.” This means in the event your see some dangerous shit going down in front of you want to avoid it, keep your eyes high, where you want to go, not at what you don't want to hit.
Be safe out there team!