Many writers have a business card—even if they don’t have publication credits yet. A business card, like an author website, gives the impression of professionalism and seriousness. It’s an important and inexpensive tool for making great connections and fans.

But many writers think inside the box when it comes to designing and using their business cards. They’ll include their contact information and nothing more. The fact is, your business card is your most powerful tool for face-to-face networking and promotion. And when you couple your print business card with active social networks and a dynamic author website, you’ve hit the trifecta of promotion.

If you’re using a business card to encourage new readers and make new connections, consider these five common missed opportunities.