Blah blah blah, just tell them how good you are, what you do that is different, stain removal, a funny story, ask for recommends, info on ncca and iicrc, are you using solutions? then tell them that you are now detergent free with no enzymes no bleaches and you can drink the stuff it's so kind.
Client loyalty is high I can get a months work from old customers and probably another week out of recommends, natural work coming in looks after the rest of the month and 3 weeks and then I send another.
I send them January, April, July, mid September (a little earlier than 3 months) as I like to pick up new customers around Xmas ( popular time ) to build database.
Shaun