Guidelines for Requesting Rec Letters:

When requesting recommendation letters from Dr. B, it is good practice to send a list of the names of each program and the the due dates.
Provide a resume, personal statement or other (not required but helps me to get to know you better. The letter will be written based upon your context in the stream though.)

Also, please be sure to send a reminder email a several days before. This is not nagging - but rather, is helpful!