"Can I take the opportunity to thank you for the excellent service you have given us. You listened to what we asked for and provided the drawings very promptly which were exactly what we had requested"
"We have decided that you are nothing short of a genius. Both plans look great but we particularly like the second option for lots of reasons!"
"Your ideas and input in the design stage were invaluable. Your patience greatly appreciated and your enthusiasm refreshing. Thanks to you we have exactly what we wanted but didn't know how to get there."