Check out these business card design images:
Revised business card design
Image by richard winchell
I got fed up with trying to figure out what my phone number is going to be going forward, so I got rid of it. As well as every other way of contacting me, except for the one method that will stay the same in (what suffices for) perpetuity.
Either "Nice to meet you" or "Designer of nice things" on the back, in white Dolly Italic.