Did you know: 2.3 Million couples are wed every year, and the average number of guests at a wedding is about 178 people. This means approx. 409 million wedding invitations are sent every year! A tree produces 8,500 pieces of paper. So if everyone sent a paper invitation, about48,000 trees must be cut down every year, to make all the invitations. Check out my Green page for updated information about some great eco-friendly vendors.