Grinding while questing helps. You'll still often come across quests that you'll finish too fast, even some collection quests, and still require some grinding. What I typically do is grind for a bit, then once I gain a couple levels above what I'm killing and the xp gained starts to go down below grinding worthiness, run the quests. If you finish out the quests in zones too fast and are stuck in a dry period where you're too low for the next zone, you'll end up having to grind out the rest anyway. Grinding out any rest you've accumulated then turn in quests kept me from slamming my head on the desk. Rest takes roughly 24hrs to gain 10%. With this in mind, taking time to work on teams on the side helps to let the rest build up on alts. In the starting areas, grinding out yellow mobs isn't too bad. If you have enough gold to pass on to a new team, now there's mailboxes in all starting areas, looting corpses can be avoided. If not and starting on a fresh server from scratch, watch what items stack and have the best vendor value and droprate. For Dwarfs, Humans, and Orcs, I grind out the wolfs and boars for the claws, furs, and teeth and vendor everything. Good way to get the extra bags from the starting area vendors too.