Right tires
Before I moved to Alaska I was always irritated by the surprised look on public transport's face that it snowed in winter. "It was unexpected" "It took us by surprise" "We aren't used to this".
Yes the unexpected took them by surprise and despite the same white stuff falling every year without fail in January and February, they aren't used to it.
Then you have the complete pricks that think 4X4 means their cars have the power to defeat the laws of physics. All 4 wheel drive does is provide additional traction, allowing you to pull away and keep moving in conditions that leave 2 wheel drive vehicles stuck.
An SUV or truck's greater clearance continues to allow you to keep moving when a six or more inches of snow would snag a smaller vehicle, and an altogether different technology prevents skidding. It's called electronic or automatic stabilization, telling your modern day ALL wheel drive vehicles what power to assign to each axle or even an individual wheel. However this doesn't mean you can drive 60 MPH in a foot of snow and expect to stop in the space of 20 meters when you catch up with the predictable 20 car pile up.
Ever been in a 4 wheel drive vehicle when it loses it in snow or ice? Not pretty. No amount of of corrective steering is going to get you out of that one and the top heavy part is a particularly impressive conclusion to the experience.
But despite all the gizmos of 4 wheel drive, the simple truth is the best weapons you have for snow are your tires and having the right ones for winter conditions.
I've lived in Alaska for 10 years and only had all wheel drive for 2. Never failed to get around, because if we had a problem getting to work or school when it snowed, the whole state would be shut down for 6 months of the year. Our airports don't close either, but that's another story.
Of course it helps that our local authorities aren't taken by surprise by the season of winter, ie they expect to happen every year, but simply using all weather tires allows the financial mortals amongst us to keep moving when the racing slicks they sell in the UK would fail.
So the moral is simple. Get better tires and drive at sensible speeds, even if you have a 4X4. Cos everyone is definitely going to laugh at you if you stick your shiny new jeep in a ditch.