So ...so much stuff

[Nezerius]

Plus don't forget about the armoury bonus, which gives you much more EXP when you have another class of the same type (Dol/Doh/Combat classes) by having one at level 50+

Just to correct you here, the armoury bonus only applies to combat classes, not to crafting or gathering classes. It also applies to any job that's lower than the character's highest level job. For example, a player with a lvl 33 BLM and a lvl 31 WHM will get the armoury bonus when leveling the WHM.