Money/Item Farming Exploit

Where: King William Street
What: The two unique quest bosses there
Quests: Take these quests - Demons of Notoriety + Daddy's dead
How: Accept the quests as you normally would, go in the portal and clean out the instance (kill bosses)
use the 1 way teleport back to town
sell everything
abandon the quests
accept the quests again
go back in (after your first time its going to be twice as easy because the other monsters are already dead)

Those two bosses are really easy to get to and it's the only exploit I know of that isn't patched. As I said before I figured this out by myself so feel free to share it with others.