One thing I miss from the very old days of 1.0 was how each guild had certain skills you could unlock if you saved up enough "guild marks" through quests. These skills were pretty general and could be shared over any class. It really helped encourage players to try different play styles on their way to picking up these new skills. I find once I get into a job there aren't a lot of exciting or useful skills to share to customize my character. I have the option to add additional skills - but none of them really seem worth having. I would like to see ways to unlock more skills that can be shared over all classes, or at least magic skills for magic classes and battle skills for battle classes.