Man, you need CABINETS! It looks like everything I own but there is no "away" to put things in. I'd suggest searching Craigslist for anything you can mount to that block wall for over workbench storage space - you've got bottles of chemicals (for example) all over the place). You could easily make your own, but trying to make cabinest in that area would just add dust to the mix. I noticed on another thread someone had bought multiple two drawer filing cabinets, placed them side by side and then just used two layers of 1" plywood on top as a work surface. That could work great in this area. Surplus filing cabinets are plentiful, cheap and would give you some order FAST. Then store similar things together. Last, I'd suggest improving your overhead stroage for things like that mattress frame and the steering wheel. They odn't need to be out and they're awkwardly sized to store. Best of luck and post pictures of your progress.
"The journey of a thousand miles begins with a single step" You need to take that step!