I often cut a lot of short pieces, such as spacers. Cutting these pieces without them falling into the blade can be a problem. So, I use the jig you see here to move them away from the blade.
Marching Along. The jig consists of a piece of stock that’s shaped into a wedge, along with a little recess to collect the workpieces. A clamp holds it in place against the fence. I position the fence so the jig is located just behind the blade. Then, as I make cuts with the miter gauge, the small pieces get pushed along the wedge and collect into the recess. This keeps them from moving into the blade.