Today, Wired added a guide to sprucing up your business card to their How-To wiki. It's filled with simplistic advice about picking paper, the classic versus novelty debate and making sure you have the necessary data on display, with pithy comments like "of course, go vertical if you're so inclined." I am so inclined, thank you.
The Wired guide is seemingly meant for technophobes who have never had to think about their own address, like John McCain. If you want some serious advice that also cuts right to the heart of why business cards are important, just watch this Public Service Announcement courtesy of Christian Bale: