I recently discovered Moo.com and their customizable business cards. I love, love, love the idea of having business cards with this printed on the back:
To me, it's such a great declaration of confidence. Or perhaps a reminder to be confident. Always. There are other slogans I would add over time. And fortunes. I think it would be super fun to have different fortunes on all of my business cards so you never knew what you were going to get. They'd be like mini tarot cards!