If you don't do that, and have little or no experience driving in snow, keep it simple. Slow down, slow down further before turns and curves, and remember that you do have gears 3, 2, & 1 that will help you when traction is bad. Don't panic, just think slow and graceful, and make your way carefully home watching out for the idiots who don't do that.Absolutely.
But I'd like to add one more thing:
Safe following distance.
The rule of thumb for clean, dry pavement is that you should follow 2 seconds behind the car in front of you, to give yourself time to both react and stop if Mr. In-Front slams on his brakes.
If the roads are bad, make it 4. Or 8. Or 10.
Seriously, if Mr. In-Front hits a patch of ice and spins out in front of you, you don't want to have to stop on a dime, because just about the time you hit your brakes, you'll be crossing over the same stretch of road that did him in.
Best case scenario, leave so much room in front of you that you could roll to a stop just by taking your foot off the gas, and still not play bumper-tag.
The bad news is, some idiot in a 4x4 is going to see the huge gap ahead of you, and change lanes to fill that gap. And he'll probably do so 10 feet in front of you.
Just back off again.