There are a few ways to opt out of receiving junk mail. First, by calling or emailing the company directly and ask them to remove you from their mailing list. This method is pretty time consuming, but you can specifically opt out of the things you don’t want to receive and still receive the things you do want. The second way is to use a website such as CatalogChoice.org or DirectMail.com. Both of these companies streamline the opt-out process so you don't have to contact companies yourself and it’s free, however, it may take some time for the mailings to discontinue. Just imagine, with a few clicks you can say good-bye to those catalogs (which can be viewed online) and say hello to a roomy mailbox!
If you want to dive deeper into this topic and get more information, check out this site and read “How to Get Off Mailing Lists to Stop Junk Mail in 6 Easy Steps”