They would be divided according to fandom. Crossover fics would appear in all the fandoms they reference. The smut section would have red lighting (for red light districts, duh) and the fluff section would have bean bags and stuffed animals. The angst section would be between fluff and smut so you can cope as you choose. There would be divisions according to pairings. Fan art would decorate the walls. There would be special nights for readings. The computers could be used to write fic and reference the original canon. Each fandom section would be decorated according to the corresponding fandom. The staff would wear cosplays from various fandoms.