Thanks in Advance

I've never cared for the "thanks in advance" phrase that some people insert in business letters. It is presumptuous and mildly coercive but perhaps I need to join their camp. Here are a few that may be useful:

• "Thanks in advance for sending me a million dollars."
• "Thanks in advance for the new Jaguar."
• "Thanks in advance for the beach home in Malibu."

All I need is one positive response.