What's that squeaking noise every time you step on the brakes? That is the wear indicator designed to be extra annoying so you know that it's time to change your brake pads. You don't have to take your car to the local mechanic or get ripped off by some chain store that's going to try and up-sell you once you drive into the parking lot. You can pick up a set of brake pads for fairly cheap and do them yourself at home. Not only do you save money, you can get out of doing any other housework by saying, "Sorry, babe, I'm busy doing a brake job on the car." Damn, do you sound like a professional or what?