love the idea, and love (!) the handwriting. but i worry that the post office would rip those cute little envelopes right off the back of the postcard …. having received a badly shredded postcard just this week. still, i’m probably going to try it for a party invite.
i promise you all that we tested this idea in the mail for real. we sent to 7 different addresses in manhattan, queens and brooklyn, and they made it a-ok! i recommend stiff and dense cardstock to a thick pulpy cardstock, and definitely use a xyron to stick those envelopes (double stick tape won’t do it– as an alternative, i bet carpet tape full-bleed on the envelope backside could work). you should always mail a test with your actual materials, of course. (a xyron will change your life, p.s… and thanks for the handwriting complement!) — randi, MSW style editor