I survived driving a couple years at college... it was a small town that measured snowfall by the foot. They also plowed once a day whether it needed it or not and never salted. After winter they took heavy equipment around and scraped up the 6-8" of ice off the roads. Never slid off an icy road there - it just took good tires, knowing when to stay home, and remembering to keep your head out of your rear.
I did, however, bump a car once because I couldn't stop on the ice when some girl cut a corner. After that I started running chains on my Ranger (since it was 2wd) and never had a problem.
Driving my one Bronco II (which I made the mistake of selling), I accidently got it stuck once next to a road - I missed my turn and decided to pull a U since there was nobody around. Only thing was, my U-turn was wider than the road. I didn't think anything of plowing into the snow on the side of the road until I lost traction (got hung up on the packed snow where snowmobiles were being run). Only other time I went off the road up there in the BII was on purpose. Was coming up to a stop light and no matter how lightly I touched the brakes, I instantly would start in an uncontrolled slide. So I used the snowbank on the side of the road to stop me. Threw it in 4-low an backed out when I got stopped, lol. Then I inched up to the light in 4-lo.