My sister has an etsy store where she designs and personalizes invitations. She just sold a housewarming invitation where the couple requested she add "gifts aren't required, but we are registered at ____." She obliged, but couldn't wait to snark on it! Your friends and family aren't the only ones judging you behind your back. Your venders could be too! (Even if they agree to your outrageous, etiquette-breaching requests!)