Leveled my three alts' botanists from 60 to 70 just from doing their 60-70 job quests, GC turnin for the day, and the three namazu quests for the day. And nothing else. The exp buff to gatherers now is truly insane. I was originally going to just start leveling them today to get the quest-locked skills I was missing, but before I knew what was happening, I was level 70. o_O