Pegboard on the walls - oh man, Gary you are a genius!! You have just helped me solve my storage issues.
My darkroom is in a corner of the basement where the water main is and I had to build around it. It has about 8' 6" square usable space. The enlarger (an ancient Beseler 57MB with custom built in cold light) is attached to a table I built with a sliding base that I can lower.
I have a plastic utility sink that has a pump under it to pump the water up and out over to the main waste line. The trays are on another table I built with two shelves under it. And there is about a 3x5' are for me to walk around in. I have to be a little careful about any splashing that may occur from the sink.
So I think putting pegboard up is really gonna help.