Take the Wiper Blade Challenge
Wiper blades should be able to clear the windshield completely.
If your wiper blades cannot do this simple chore and you haven't had them replaced in a while, it's probably a good idea to have them checked as soon as possible, before the next rainstorm hits.
Your local Pep Boys stocks wiper blades to fit almost any car. Depending on your degree of skill, installation might be tricky. If you don't feel comfortable doing it yourself, ask your local Pep Boys store for assistance.
Even if your wiper blades are in good shape, be sure to top off your wiper fluid regularly, especially during winter and early spring and buy an extra jug to keep in the trunk.