Driving in frosty winter weather is a fact of life in many parts of the United States.
It frequently comes just as millions of drivers are embarking on Thanksgiving, Christmas, or New Year's road trips, and often carries over well into the new year, too. At best, window frost and icy roads are a nuisance; at worst, they can be deadly. We look at what drivers can do to prepare their vehicles for winter's challenges, and how they can adjust the way they drive to help avoid a crash.