Always make sure there is enough water in the windscreen washer reservoir and your wiper blades are working properly. You should change your wiper blades every six months, even if they have not been used very often, because the rubber corrodes with exposure to the atmosphere.
We find it's helpful to use a screen wash all year round. In the summer it helps to remove insects, and in winter it can stop the water freezing (check label for appropriate concentrations).
If you have any questions, call Dekalb Tire at (678) 954-1728.