Regarding customer buying, the most important purchase by a customer is the second time he or she purchases your product or service. Take the person to lunch. This is especially helpful if you are dealing with a person who could purchase larger amounts of your products or services. Make a web page or use e-mail. Visit or telephone each prospective customer regularly.
Hand write or send a personal greeting card.
Write a technical article for a trade journal or publication. Make personal presentations at trade or industry shows. Place leaflets on car windshields or home door knobs. Put notices on supermarket and mall bulletin boards. Have booths at community affairs.