It never ends. While we enjoy our hobby, including parts and tool hoarding, I can't help thinking that as I pick up more $5 and $10 items (sometimes more), it costs 20-30K to put up a building and storage areas to keep my treasures clean and dry.
Just an example; I had been storing the parts for two cars on my flat bed car trailer, stored in the back on my shop, and an unplanned use for the trailer came up. What to do with the parts? I have 90 shelves on the floor above with none empty. I went to Lowes and purchased a 2'x4', five shelf unit. I got done with trailer and guess what, there's a few things already collecting on this convenient flat surface. I hope Lowes has sufficient inventory!! Hint: Stack, don't spread.
P.S. I wouldn't have it any other way.
Howard