Replicate business and referrals from pleased clients are fundamental to success in selling. The longer you work in sales as a professional person committed to treating your customers right, the higher and higher will be the proportion of your business emanating from repeat business and customer referrals. By contrast, think about the stereotype of the person we would generally consider the antithesis of professionalism in selling, the used-car salesperson.Of course, there may be some used-car salespersons out there that are professional businesspeople, but by and large their reputation is not exemplary. The reason? We believe it has a lot top do with the fact that the person selling in the used-car lot sees the prospect as an opportunity for a one-time transaction. Seldom will a customer return to that same used-car lot for a repeat purchase, and the used-car dealer virtually never has service facilities for developing an ongoing relationship after the sale. Used-car buyers rarely refer friends and colleagues to the dealer they bought from.