Just wondering, and my head is spinning from going through so many threads...how exactly is the proper way to address the STDs? I'm under the impression that they are less formal than the actual wedding invitations, but just how formal do they need to be in the addressing? Spell out streets, etc? Mr and Mrs with children's names below? Sending mine out this month, and we are at a loss because no one else in either of our families even used STDs.