Business Cards are the standard in the business world, where they are used not only to allow people to know how to contact you, but also as a way to solidify relationships, meet new people, and increase business.

While the needs of evangelism are different, personal selling strategies can increase both how many people you help, and how many actually choose to accept your message. Business Cards are effective in that they are small enough to always have on hand for when you need them. They are good as a leave behind, as well as a way to reach the peers of those you've already reached. They are also nice because they can be a soft sell that leaves behind a tangible lifeline to salvation (your phone number).