For those of you who changed your brake padsyourself, where did you buy it from? I'm assuming online?

I tried searching, is there any step-by-step instructions *with pictures* for changing brake pads? I'm very dumb when it comes to this stuff.. but want to learn. so anything would help.

 

Autozone has znet and they can show you step by step how it works.... and even print out the instructions...

but you still need a decent selection of hand tools to include a disc brake spreader or at a minimum a c-clamp