It must be Fundraising mailing time!
I’ve received several questions this past month about the dreaded bulk mailing process. A couple of years ago I discovered the software www.Postagesaver.com. It literally saved me time and money for my organization. For $25 you can download this software, then easily upload your mailing list (from excel) into it and it creates a sorting guide as well as prints out the necessary forms for the post office.