Clamp rack from one 2x4 and ten minutes

Rip a 2x4 in half, screw one half flat to the wall into studs, screw the other on edge along its top to make an L. F-clamps and bar clamps hang over the edge by their bars, pipe clamps too if you add notches. Parallel clamps want a dedicated rack with slots cut on the miter saw. Mount it near the assembly table, not across the shop. Clamps you can reach get used; clamps in a bucket do not.