Everyone needs a business card. It doesn't have to list your occupation, but it's awfully nice to be able to hand someone a card with your email &/or phone number on it instead of the awkward mutual cell phone dance. Also, business cards can be pretty. Enter the Moo Minis, which are roughly half the size of a "real" business card (cute! portable!) and can be customized with your own photos and designs. If that sounds like a lot of work, you can choose from their template packs done by real live designers. I like this one and this one and this one, but there are more to choose from here. From Moo, of course.