I’m posting a link (above) to the lovely people of moo.com, where I get my business cards, because I just ordered my third pack from them (weee! new cards!!). I order only from them because they make extremely high-quality, gorgeous, custom cards (and post cards, and STICKERS of your art or logo) that you have just about full control over. My favorite part is that you can upload multiple designs and get some variety in your pack, so if you’re talking to a client who wants a painting - boom, there’s your card with one of your paintings. Someone needs photography work? Same pack of cards, there’s that photo you perfected. Convenient, and like a mini portfolio (or trading cards?) with all your contact information ready. They’re offering discounts to new customers, so by all means, try them out.