I, too, have the off-cut/short piece storage problem. I built a small rolling cart out of a furniture dolly. It is great, right after I give away or burn the over flow. No matter what I do my tendency is to not throw it away. It builds, it expands, it creeps and it takes over. I snap out and deal with it finally. The metal I keep. It is hard to burn. I picked up three 2x6x6' metal racks a few years ago. I put all three on casters. I find the spacing on the shelves as they currently sit is to great and represents a lot off waste space. I have to be careful there though as if I put in an intermediate shelf it will turn into a dark 2' deep archeological dig in no time. One of the three has become a total catch-all and I am trying to figure out how to deal with it. Perhaps some uni-strut for the intermediate shelf. Net/net, it is a constant battle. I see pictures of all of these neat and orderly shops and I wonder how people do it. I was ADD before it was fashionable so I just don't work that way. The best I can say about my shop is it is chaotic abstract expressionism. It drives me nuts, but I love being out there