I am curious. I assume it differs from person to person, but I do expect overlaps as well. What you collect? Personally, I collect troll skulls and peoples' journals. I collect the troll skulls because they look cool. I have four so far. I expect to find more as I go along. The journals are kind of more of a personal thing with me. I keep a journal, so it seems fitting for me to collect their journals. After all. What are they going to use them for? They're dead.