I was wandering thru one of my local Home Depots (Watchung NJ) when I walked past the clamps in the Tool Corral.
There was a box of 2" metal spring clamps with NEON GREEN tips for $0.99 each. While they are not on sale they seem to be a good deal.
These spring clamps are definitely tougher to open than the Husky 2" spring clamps in the bin next to them, but they are $3.00 cheaper each.
I picked up 8 clamps to go with the 4 corner clamp brackets I bought a few weeks ago at the Woodworking show.
Check 'em out if your interested.