Cutting short pieces at the miter saw can be nervewracking, not to mention dangerous. To keep my hands well out of harm’s way when making cuts like this, I came up with the simple jig you see here.
To use the jig, I just scoot it up to the cut line on my miter saw, and clamp the jig to the fence. Then I secure the workpiece in the jig with the toggle clamp. Finally, I place one hand on the jig, well away from the blade, and make the cut. The toggle clamp keeps the workpiece secure, and my fingers live to woodwork another day.