How many people here run open wi-fi networks? I live in a semi-urban environment and wouldn't mind sharing my bandwidth, but I then I have to put passwords on

How many people here run open wi-fi networks? I live in a semi-urban environment and wouldn't mind sharing my bandwidth, but I then I have to put passwords on my shared printers/network shares/etc. I've been meaning to set up an additional, open wireless network....but I've just been too lazy to open up my router and install another wireless card.