Sign in with the account you use for SkyDrive, Xbox LIVE, Outlook.com, or other Microsoft services.
Sign in with the account provided by your work or school to use with Office 365 or other Microsoft services.
Send this letter to a customer who sent you suggestions which you implemented. The letter template details the improvements made and thanks the customer for taking the time to send their feedback.
Round Lake Publishing, "Sales LetterWorks"
For more variety, visit the Round Lake Publishing, "Sales LetterWorks" site.