I use collections!
I have some by ratings. NC-17, R, PG-13, and then PG and G are combined since there so few.
I have a Ryden collection, a collection for FBR fics that
aren't Ryden.
I have a Self-Insertion collection and a Conversations in Dreamworld collection.
A drabble collection.
One for FBR chaptered fics that are complete and one for chaptered fics that aren't.
One for Green Day, one for My Chem, and one for Vam.
One for original fiction and for non-fiction.
One for crossovers, one for Waycest, and one for Prompts from a specific table.
One for stories written for contests.
One for the stories I wrote in jail.
One for The Nightmare Series.
One for stories with accompanying videos.
One for Ryan character fiction.
One for kink.
One for rape/abuse.
And one for FBR oneshots (which are most of my fics).
I pretty much try to break my stories down so people can find one they're looking for, but I put a lot more emphasis on my FBR fic.