I save all my clean cast, copper and aluminum,,, last summer I sold 2 tons of rotors,, brought $200 and that was before the price went thru the roof,, I also sold my aluminum and copper,,, $1200,,, I spec I had been saving it up for 5 years. I figger I had 2 days in clean'n the rads get'n them ready to sale at top dollar. I disassemble all my bad AC compressors and aluminum water pumps when I get the time usually on a Sunday while I am watching a race. The rest of the scrap I throw in a 5 gal. bucket and throw it in the metal ben at the convenience center when I take the trash off (gives me a reason to look for hidden treasures in the ben wink wink),,, All the clean gears, bearings and such I put into 55 gal steal drums out back,,, stuff that makes weight fast,,, brake pads shocks are are stuff that is classified as dirty or a combination of plastic and metal I don't keep. I have a few guys that come around look'n to buy my scrap,,, I don't sale to'em unless its something like a converter,,, I will trade out tho for scrap they have on the truck so if they do pick up some good usable steel like angle iron, square tubing they stop by here for they haul it off to the scrap yard. I save copper wire,,, don't mater if its just 1/4" long,,, just cut it off and throw it in a 5 gal bucket,,, I spec I average saving a pound a week,,, gotta admit I save beer cans 2,, I have nuttin again free money