List building can be the most rewarding job in the world. But it can also be the most ungrateful way to spend your time and money if you're not careful. Most marketers who attempt list building are digging their own graves. Why? Because without even knowing it, they're committing un-holy sins which can only lead to poverty, misery and despair. This episode reveals the 7 cardinal sins of list building you ought to fix right away to build your own stairway to financial heaven.