1. Cut a square out of decorative paper and place it in the window of the blank invitation.
2. Cut a second square out of another sheet and place it over the first to create some relief. Use glue dots to glue the squares in place.
3. Glue a decorative cardstock strips along one edge of each of the two squares (and another along the folded edge of the invitation).
4.Use the paper punch to create a Christmas tree pattern in the lower right-hand corner of the invitation.
5. Decorate your invitations with a variety of holiday stickers and address them.