The following is a list of things how to keep customers.  This is a combination of things I have learned from different "systems" and experience.

1. Keep in contact. Whether it be a pop by or a call once a month.  Keep the communication open. They are more apt to use you again if you do.

2.  Be professional.  Look and act the part.  I know of agents who got into temper tantrums with spouses during a listing appointment.  The people loved the house, but wanted another agent to close the transaction.

3. Be Trustworthy:  If you don't know something, say I don't know but find out.  No one likes a know it all. They will respect you more if you are honest.

4. Be available:  Customers are only as loyal as your availability.  If you can't make a meeting, chances are they will find someone who will be able to show them the house when they want.

5.  Do something different:  I like to buy my clients dinner for the first night in their new home.  I also received a $500.00 gift check from an agent I bought a home with.

By doing these things, you should be able to keep the majority of your customers.