What a nice post about a lovely couple. I would guess it's environmental with them, too. Is lead still used in producing shiny colored paper? I hope not.
My reuse of my wedding and baby shower baby wasn't very inventive - just lined the drawers in the dressers with it. Probably used some for gifts. I no longer save paper unless it's special, large and unwrinkled, but I am fanatic about saving bows and bags. I won't buy bags, but I don't mind reusing ones that come my way.