I did this with 20,000 post cards and screwed it up with a confusing offer and only landed 3 customers. My fault.
But I want Ed to let you know about a service called catchall mail services in Lewisville texas. They will bundle everything for you and set up all the postal routes for you for dirt cheap.
Honestly I can't remember the rates right now. But when I used them last year I though it was a heck of a deal.
Integrity. Service. Excellence.
Whole buncha crud