Marit Hanson Wedding Invitations is a San Francisco based paper designer who creates some wonderful invitation and Save The Date pieces. She works with custom designs or has a selection of created designs to choose from. My favorite is the Save The Date collection that she has put together. Most designs have a colorful envelope to fit perfectly with the designs. It is pretty amazing to send out invites or save the dates with interesting envelopes as the recipients get excited before they even know what to expect.