I decided to do a little research to find something simple and fitting. I went to wikipedia to look up business cards.
Check out the picture on the
business card page.
Anyone else recognize Adanthar's avatar? Crazy.
In honor of that coincidence (or is it?), I'd like to nominate the caption from the business card on wiki:
"Expert"
Simple and completely accurate. [img]/images/graemlins/smile.gif[/img]
zip
edit: oh, and it's vague enough that you can make up a story about what you're an expert in everytime someone sees it.