There’s a certain art when it comes to accepting or declining an invitation gracefully; and with different rules depending on the occasion, the formality and the type of invite, responding correctly can feel like navigating through a minefield of explosive, floral-scented, 300gsm gloss cardboard. When it comes to weddings, the RSVP rules are even more important, as the time and effort spent planning this Big Day is far more than what would go into a Saturday night soiree with the girls. To help