I also would create a "Favorites" category, but that's just me.

Other categories I have are, Vector, Puzzle, 4 player, and "Classics" which has games like Pac-Man, Tron, Q-Bert, Dig Dug, Asteroids, etc which didn't have a filter, I had to add the games manually.
Also, I have a seperate list with "EVERY" availiable game on the cab, and another with "ALL" games which has the adult titles filtered out for the kiddies.
