Website Address

• While it will likely be on the front of any business card, a company may also include its website address on the back of the card. This provides the company with an additional ad for recipients and ensures that both sides of the card are working for the company's interests.
  
  

Calendar

• Another item one might find on the back of a business card is a calendar. This enables the company to provide recipients with a handy reference tool for their own purposes. While not necessarily advancing business for the company, it will be perceived as providing something useful and practical to people.
  
  

Tip Chart

• Restaurant tipping charts are another way companies provide a useful tool to card recipients. They have the added benefit of being reviewed during business lunches when the inevitable check comes. Whenever a card is in view, especially during a business meal, more promotion for the company is likely to follow.
  
  

Additional Locations

• According to the Business Card Design website, "additional locations" are another useful idea for the back of a business card. A company often has several additional branches besides its main location. By putting these additional locations on the back of its card, the company can promote all their areas of operation.