There are a few key steps to follow when purchasing residential addresses for mass mailing. First, consider what type of mailing list you need. There are many different kinds of mailing lists available, so it’s important to choose the one that best suits your needs. Next, research the different companies that offer mailing lists. Compare prices and services to find the best deal. Once you’ve found a company you’re happy with, purchase the list and make sure to get a receipt. Finally, take some time to prepare your mailings. This includes creating a good design and making sure all of your information is accurate. Once your mailings are ready, send them out and enjoy the results!