Even if the primary work you have done for them has been completed, check in regularly- at least once every 4-6 weeks. Educate your customers, send them articles, post information on your website, send out ezines. Have lunch when you can. Send them greeting cards.
A personal touch means so much.
Let them know you value you them. Always thank them for referrals- write handwritten notes and let them know how much you appreciate their business.
Never, ever, take them for granted.
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