Designing your wedding invitations and envelopes--be sure not to forget the return address for the post office! Or save a little money and make a custom stamp.
New York City Calligrapher Joanna Krupnick makes it personal.
Envelope Addressing, Custom Envelopes
How to Address Wedding Invitations (with Pictures) - wikiHow
What to Include in an Elegant Wedding Invitation Suite
Your
Wedding Etiquette: How to Address Your Invitations - Cheree Berry
Wedding Return Address Stamp
Design & Print Custom Quick Invitations
Everything to know about Stamps For Wedding Invitations - Paperlust
Custom Stamps - Where to Buy and How to Use Them - A Beautiful Mess
Mailing Your Wedding Invitations & How to Navigate the Post Office