A business card is quite possibly the single most important piece of information you will ever give your client. The reason for this is people buy from people and its likely the only company...
I've added the links for the 4 main credit card companies business card options, however many banks will also offer credit cards that are associated with your business accounts. Capital One offers...
People who have businesses. Even people who have personal businesses require themselves business cards, so that potential customers can easily contact them.