Mine are on the wall because when I set up my bike shop I had only diamond frame bikes to work on. Today I work mainly on recumbents and trikes. Each one has it's own fixture or method of clamping so that I can work on it. The trikes in particular take up a lot of space so I prefer to work on them in the garage. If I were doing it today, I'd store all of my tools in a roll around cart that I could push to wherever I'm working.
__________________
My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.