I know I've only stepped through into outlands, and so far I've only had the wood and metal collection quest and the bonechewer blood quest.

The way I'm approaching it is to grind a bit on the collection side of things, then wander off and do a couple of other quests then hit up the collection again. Obviously I have all the really crappy ones but I'm probably going to try and do them all anyway.

It's about cutting up the horrible chunk of collection quests in to more manageable sessions.