How do you clean pyrex pan using house products?

Pyrex usually cleans up pretty well if you just let it soak then scrub normally (and repeat as needed). If there's material that you really can't get off and you don't have scouring pads (like SOS) you can use baking powder (like Arm & Hammer). It isn't unusual to have some discoloration around the edge on a well used pyrex :)