Haha, I'm glad you at least got to the TLDR portion of my 2nd stream post :). We've discussed Keyrings here in the past, although I couldn't really find anything substantial from the search. I would be for a key ring, but, I do think it should take an inventory slot (or bag slot) and have weight if encumberance is a thing like EQ. You could store old/excess keys in the bank.
