Are we only talking about Rogue addons, or must-haves in general?
Because Ackis recipes, auctioneer and fishing buddy (if you fish) are all pretty damn useful. There's also an Archaeology one that will keep track of node locations, so you can more easily see potential spots were the fragments are.
Anyways, you all are horrible, @#%^ed up people
Never underestimate the healing power of a massive dong.