I don’t do glass because I assume it will take too long to render even though I’ve watched a dozen tutorials about how to fake glass to render faster.
I don’t do rigging because of a horrible experience with Maya 5.
I don’t do volumetrics for some stupid reason.
I have installed Octane Blender and Radeon Pro Render Blender before but I have not gotten around to trying Luxcore for caustics because of some irrational hatred I have for caustics caused by an experience with Mental Ray a lifetime ago.
I had 10 more examples I though of in the shower the other day that escape me at the moment.