[Your letterhead, if desired; if not, your return address]

[Date of letter-month, day, and year]

[Recipient's first and last names]
[Company name]
[Street or P.O. box address]
[City, State ZIP code]

Dear [recipient's name]:

On behalf of our entire staff, I would like to take a moment to welcome you as our newest customer. In recognition of your support and as a token of our thanks, please enjoy using the enclosed 30% coupon when you shop for your new purchases.

Please contact me personally at 800 292-2998 if I can be of service or answer any questions at any time in the future. Again, welcome, and thank you sincerely for your business.

Sincerely,

[Signature]

[Sender's first and last names]