I never liked to break down plywood on two sawhorses, as it did not quite feel safe for me. So there is a reason to build a simple work table / plywood cutting table. It should be easy set up and takes very small space in the shop.
Step 1: Material And Hardware
I own (2) of the metal folding sawhorses, and I had some scrap lumber screwed on top of them. I also found some left over window latches that I could use to lock the table top to the sawhorses.
First cut (3) of the 2x4 into 48" pieces. Then bundle them together with two clamps to trim them to the final length, in this case 47". Leave them clamping together for next step.
Lay out the notches 12" from each end while they were still clamped together, and (5) of them would be placed 16" from one to the other on two of the 8' long supporting beams.