I know how it is man. when I first started I had a pile of stuff I didnt know what it was. All shapes and sizes, colors ect. Things with metal rivits and I didnt know how to get'em off .Also, you will get more alum, copper, ect, as you go on in time and figure out what to look for. find a yards phone # and call ahead, Every yard is different. For example,I live in illinois and Indiana yards pay different, so I cant say what you will get in texas isnt the same as here. I see folks gettin 3.15 for copper1 and I get 2.30 here Take your time and go by what you get the first time you bring in a load. go by that and you'll get an idea for that item. my yard pays .75 for car batterys and the place down the street from there will give me $5 for a battery. prices go up and down so if the price is lower and ya got space to store it, wait.