I'm making them all, I think. Here's a good one: I bought a fancy pistol-grip cutter with oil in it. Some leaked out overnight because the screw was loose. I tightened it but had oil on the cutter and some on my hands. It didn't seem to hurt my grip much so I didn't bother to wash everything off. Every little glass chip stuck to my hands and the tool like glue and I ended up with a bunch of tiny cuts on my hands. What an idiot. Haha.
Another mistake I remember from way back long ago when I built a dozen or so windows. Doesn't matter that I remember it. I'm still doing it. I am getting a design 98% right and then failing to clean up a couple weaknesses, like deep inside curves or very tiny pieces.
Michael