When was the last time you changed your windshield wiper blades? Most people wait too long to change their blades.  Experts recommend that you change your blades every 6-12 months! It's been way longer than that for you, hasn't it? I thought so.  It's easy enough to do yourself.  Consumer Reports rated the Valeo 600 best overall, the Rain-x Latitude best after 6 months of use, and the Anco 31 Series a best-buy, with a pair costing less than $20. (The Michelin RainForce were also rated a best-buy, but they are slightly lower rated, harder to find and no less expensive than the Anco.)