So after [livejournal.com profile] friendof_dorothy and [livejournal.com profile] deifire respectively made me remember fanmixes and Five Things fic in the space of a single day, I decided it would be fun to have a Fandom Tropes challenge once a month, to remind us of all the stuff that used to be super common in fandom that maybe we don't see as much as we'd like to these days.