In one document lurked a little gem (at least I think so) that's handy if you never use it. :)
This chart cross-references the rolls of 1d6, 2d6, 3d6, 1d20 and d% with each other. Seems like in certain situations this could be extremely useful. I know that with this chart, and d%, I could probably run an entire session of my OSR game.
I might have to try that sometime...
PS: Go Bears!!!