Not all mailing lists are created equal. Some you sign up for because you’re interested in the topic or group. Others you add in hopes of getting updates and maybe even money-saving deals from your favorite stores. Then there are the ones you never signed up for, but they still show up on a regular basis. These fall into one of two categories: companies you do business with and spam. If you have ever registered on a website, chances are you also agreed to be included in their mailing list, whether you realized it or not. When you sign up for things like store cards or other in-store promotions, you are often added to the store’s mailing list too. If you’re getting regular e-mail from a website or store you’ve done business with in the past, follow the unsubscribe steps above, or log in to your account and look around for the communications preferences page.