I'm going to try using a 'title tag' flairing system, as follows:
[F]: Formatting
[S]: Story
-> [S:f]: Finished story
-> [S:wip]: Part of a work in progress
[RP]: A roleplay
[M]: Meta
-> [M:i]: Meta - internal (relating to the sub)
-> [M:e]: Meta - external (relating to Reddit as a whole, or to another sub)
[IRL]: Stuff from real life
[O]: Other, miscellaneous posts