Here is a non-profit set up to help you stop junk mail. It's purpose is to help stop the environmental impact of unsolicited printed mail. There is also a Facebook group for it. There is a fee, but they donate it to a cause of your choice.

http://www.41pounds.org/

41pounds.org stops your junk mail and catalogs

You can contact the direct mail association and ask to be taken off of mailing lists (free).
https://www.directmail.com/directory/mail_preference/


Alice