You have yourself a deal, sir.

I've always been a big fan of robbing people blind, so I'm happy to announce that I've discovered a bug in Skyrim which allows the player to attain an extremely large amount of gold by doing just that.

The bug appears during the Blood on the Ice quest-line once the player has acquired the Strange Amulet from Hjerim in Windhelm. To exploit the bug, simply sell the amulet to Calixto Corrium then pickpocket it back -- then sell it to him (again), then pickpocket it back (again) -- over, and over, and over. He'll give you 500 gold each time.