My father in law never ceases to amaze me. He has created the most awesome freestanding clamp rack. What used to take up a whole wall can now sit nicely in the corner of his shop. Another great feature is that it is mounted on casters so it can be moved around for easy access.
Somehow he managed to find room to fit all of his pipe clamps, bar clamps, parallel clamps, and screw clamps.
And check out this wood glue caddy!