I could live without Herblore after level 57 (for quest) easily, there's no point to it after that. All you do is loose money, could just as well sell my herbs and buy the potions myself. Also, I got my Firemaking level up to 65 for mining helmet, it's good for the Dorgesh-Kaan Agility course :P (the point with Agility for me is just so I don't have to walk as much, plus the cape (mostly for the cape))