In my new shop, I didn’t have the wall space to make a clamp rack, and was supremely tired of tripping over my clamps. Trying to store them in a tight bundle made removing the clamp I wanted difficult, and I had to go back and forth to the clamp pile to get enough for my projects.
Now, I wheel my easel over to the workbench and pick clamps at my leisure. The cheap plastic lattice keeps them nicely separated. My shop is South Florida, so the easel supplies a breeze from a box fan and holds plans for my current project. The cup holders come in handy, as well!