If you want to succeed in sales, you have to make your customers feel special. Don't let them forget the critical role they play. Listen to your customers' problems and needs. Communicate often: "How are you doing?" "I have an idea that might interest you." "I was just thinking of you." "Any problems or needs I can help you with?" Get the message across that they are special and important to you – not once in a while but all the time.