May be old hat but I recently bought and installed cargo bars across my small 5 x 5 rental storage space [hey, I live on a small sailboat!] A couple I used to hold rows of boxes against the wall to ensure the stacks of boxes were less likely to fall over. One I installed a bit higher, added shower curtain hooks, and hung things from them.

In the future I may take everything out and use a few more cargo bars to create "shelves" for the boxes and other things. This could get stuff off the floor in a flexible organized way. I may find a way to get even higher in the space to install a cargo bar or two for more hanging options [for the gear, guys!]

Hey D,"S-Hooks" Steel/Red Rubber coated type,or Make your own from coathangers&A can of Plasti-dip from Home Depew.S-hooks go a Longway in Tight places!Also You could get a piece of plywood 4'x4' & Put screws or nails in a row or your own pattern,onto it,& Hang your gear from that,When you need it,Pull it out,lean it against something for Easy access to All the Gear in 1 place&It stows well!For All Intention's:Hang in There!:)