Do you routinely offer your customers little extras that give you the edge in customer retention? If you do, don't be afraid to call attention to the fact. Promote your value-added services.
If you offer a free service, put it on your invoice at the hourly rate - and then mark it FREE so that your customer is aware that you went the extra mile. If you offer free delivery, make sure you put that on the invoice as well.
The secret Is to make the customer value what it is you are giving as part of your overall service. If you attach a dollar amount to your extras, you will go a long way toward accomplishing this.