Have you taken Minted.com up on their free "Mommy" cards offer? I did -- and I really like them. More casual than a business card but not nearly as dorky as the back of some receipt I dug out of my purse. Lots of cute designs to choose from too. Plus, the box they come in is adorable. I ordered another 25 cards for $5 more. Apparently I anticipated meeting a lot of people in the near future.
Here's how to get yours: