I laugh when I visit my local auto parts store and see that they’re having a sale on wiper blades, offering free installation. The free installation only applies if I buy the most expensive blades in the store, so I started changing them on my own. You’ll need new wiper blades after about six months or a year of use. You probably tend to go a little longer before asking your mechanic to change them, but you shouldn’t deal with the danger of streaking while you put off an inconvenient trip to the auto shop.
Wiper blade setup differs quite a bit from car to car, so you may have to follow a few different steps according to your owner’s manual. Basically, the process is similar to changing your air filter:
If you get distracted or just can’t remember exactly how the new blades should fit on the wiper arm, don’t worry. The packaging for the new blades should have a general set of instructions and a helpful diagram.