I put foam pipe insulation on that sharp edge. I still bump it but at least it doesn't cut my bald head.
I found if I use storage containers & but them in a row of 2 going length wise works if best. They seem to not move around if they can stack one on the other. Use ones that have a snaps on the lids. Smaller items can be stored under the table. That's why I use storage containers, they are easier to sit out when you have to get at something in the back or under the table . On the drivers side I use smaller storage boxes. Of course hose are stored in the on each side in the very back. I use small pails to store bottles of cleaner & etc. A cat liter pail works great. The big door on the passenger side is where we keep dirty clothed in a handy box ,we have cans of soda & beer in another container . Some things can be stored along side the spare tire. Longer stuff say brooms & etc can be stored in back of tire.
That bedroom slide is another head banger. I haven't found anything that really works . That will stay on in the wind without leaving a sticky residue on the surface. The door wants to bang in to the slideout, so I used a small piece of foam insulation strip on the slideout edge.
I use a dowel rod to hold the storage compartment door under the slideout open when working in it.
The wife complained that the trunk smell was coming into the bedroom when the trunk heated up on hot days. So I sealed it up with some car window insulation. Remember that is used to help heat the trunk. So I use a light bulb for warming if I am in doubt. There is a heat duct that goes back to the water inlet & faucet.
2014 Itasca Cambria