This is incredibly handy software from a clever, if jerky, developer. He also writes the best BitTorrent client by far for OS X.
(Never mind me. I'm just bitter 'cause I paid for it back when it was for money and he supported Camino. Then he yanked Camino support in a sulky fit, then he made it free. Oh well. I have supported an independent developer; have done much more pointless things in my life.)