My uncle recently opened a business that would exclusively sell moving vans.  The town we lived in had a great need for this, which is what gave him the idea of opening such a business.  To generate potential buyers, he received some help with Automotive Direct Mail, which would go to people that lived in neighborhoods nearby.  The plan worked like a charm, because his business tripled within a matter of only a few weeks.  Today, my uncle continues to enjoy his success, and has since expanded to include an online department for customers that wanted to shop from their homes.