Just keep your windshield Rain-Xed (or use a similar product). Wipers won't freeze to it and it makes cleaning the snow/ice off your windshield 100% easier. Also keep in mind - wipers generally don't last over 2 years at the most. A lot of us replace them every year to ensure maximum visibility.
And, while we're on the subject of winter car care...
(1) To keep your doors from freezing shut, pick a nice, dry day and spray the rubber seals (where the doors close against the body) with 100% silicone spray. One treatment is usually good for the whole winter.
(2)And, to keep your locks (especially on older cars) in good shape, spray a short burst of WD-40 into them in the fall. Then, in the spring, lubricate them again with a little graphite spray.