Changing the brake pads

[Buffalofan]

As I have stated before, I do not know how to do a lot of automotive work, just the basic oil change. But I have always wanted to know how to change my own brake pads. I have always been nervous because the brakes are a very important to have installed correctly.

Would anyone mind writing instructions? I would sure like to save the extra cash. Not sure how entailed that would be so if it would be too tedious I would fully understand.

Also when you change your brakes how do you know if your rotors need to be machined?