MyChores business cards
I got some free business cards from VistaPrint; they look approximately like this, although the text is much clearer than this picture shows:
If you would like some i will happily post a few to you (wherever you are in the world!) provided you are going to give them away and not keep them to yourself! You could write your login id on the back to be used as the referrer - remember if you invite 5 friends you become a site supporter!
If you’d like any, email contact AT mychores.co.uk with your name and address, and how many you would like! :)