Hope someone out there has some great ideas...I would like to build a handy storage system (or 2) for all of hubby's nuts, bolts, screws, nails, etc. He's a former farmer, so there's a lot! I have access to rough cut lumber & a power tools, 3# coffee cans, 18 oz peanut butter jars, etc. Am wondering about putting the metal fasteners in metal containers...which will be in an unheated northern WI shop. (rust?) Would wood bins be better? I would also like to mount the unit on heavy duty castors, as while we have the shop exterior, the interior is not done yet, & I want this to be as easy to move around as possible. I was thinking about kind of a kitchen island idea, so the top could be work space. Your ideas & comments appreciated!