I second Rapid, except mine get replaced more like every 1.5 years. Every morning I have to use the washer fluid to get the salt off the car from the ocean (Living next to the ocean is such a bitch.

). All my other roommates use aftermarket wiper blades cause thats what they get a jiffy lube or whereever. Theirs never last and end up smearing like crazy. If you want rain-x, they make a washer fluid that applies it everytime you use it. Very nice, but they don't sell it in CA because of VOC laws or whatever, so i bring it back from Texas.