If you're thick in the middle of wedding planning, you likely have your wedding stationery suite picked out and ready to go. Before you eagerly pop those fresh-off-the-press paper goods in the mail, however, you'll want to research everything there is to know about properly formatting all of the information typically included on the invite. Like with most things wedding-related, there's a code of conduct to follow when addressing guests, assembling pieces in a specific order, and (most importantly!) choosing a time to send.