The business card is your/your company’s face for the client, the way that they will (or not) remember you. Besides its main function (provide contact info) the business card should be a quick representation of what you do in a memorable and creative way. It can add status and value to your work, making your service be noticed for its quality. Give a good card and people will be impressed, keep it, and remember you when they need your services. Always take your business cards with you, we never know when we’re going to meet a potential client.