The ring is on your finger and the planning is underway—and now it’s time to get your guests in the loop. Your first step is to send a save-the-date card (aka the pre-invitation that officially announces your wedding date and lets your guests know they should clear their calendars). But you have to do it right. As a general rule, it’s best to start spreading the news around six to eight months prior to the ceremony. Also including your registry will save money and paper!