If you want to reduce the amount of unsolicited national advertising mail you receive at home, you may register with the Direct Marketing Association's (DMA's) Mail Preference Service (MPS) by printing out the DMA form , filling it in, and mailing it to the Mail Preference Service (NOT the Privacy Rights Clearinghouse). Be sure to include a $1 check or money order with your letter.
MAIL PREFERENCE SERVICE
The DMA does not provide marketers with consumer mailing lists. The MPS file is available to companies for the sole purpose of removing your name and home address from their mailing lists. Your name and address remain on MPS for 5 years. This service does not apply to advertising mail sent to your business address.
After several months you will begin receiving less advertising mail from national marketers such as credit cards, sweepstakes and magazine subscription offers, and catalogs. Local businesses and organizations usually do not use this program. You will continue to receive mail from companies with which you already do business.
Not all companies use MPS to purge their mailing lists, therefore, you may continue to receive some companies' promotions. In this instance, contact the company directly and ask to be placed on the company's do-not-mail file.
Click here  for the sample letter that you can mail to the Mail Preference Service.