What should I put in a resume?

Here's the scoop. A friend of the family called me asking if I'd like a job doing clerical work. I think I could do it. She said fax her a resume, but the thing is I have no idea what to put in it. I've really only worked at one other job (the one I have now) at a civic center. I'm thinking this would be one of the most pathetic resume's ever. Should I write something about myself? Clueless...