> Not sure if others are the sameway, but the downside to this is that I have nearly zero spatial-imagery skills. You know the tests where they show you a 3D shape, and ask you which possible rotation is still the same shape? Or the one where they ask you to show what shapes would look like, if folded up from laid out pieces of paper? My mind just goes blank:

Yes. If I ever had to do this for an interview, I am failing. I try to rotate my hand in a similar fashion you might have done if you've ever done physics magnetism calculations.