Bad ice storm? Don't fret, just follow these steps and your car will be looking peachy keen in no time.
First, get into your car. Second, roll down your frozen window. Third, punch (or elbow, either or) the still existent sheet of ice our of your way so you can see again.
There, job done. Now you can enjoy some proper winter driving.
(Hat Tip to bleahdeebleah via Reddit)