I would like more vertical space, if I had it, I would have shelves over my machines. It would make it a usable space. Those big racks for pallets would be perfect. I don't know if they have various length horizontals... I think they do. The problem is my ceiling is only about 7 feet. But to me, this is the most useful way to use the space, vertically.
Guys with big shops can still benefit. Guys with tall shops but less floor space can easily benefit. And if you have any type of forklift, walk behind or drive... you can even put machines on the rack. Putting a lightly used but valuable machine up is a great way to save floor space.
I am out of space and desperate for more space. I keep trying to clean up so I can fit more.. But I'm losing the battle. Since I am a woodworker as well, I need space to build and space to assemble..