Let’s start with the premise that you want to enjoy your wedding day and aren’t looking to worry and stress over all the things that need to go smoothly and happen on time. If that’s the case, here are just a few of the zillion things a planner or coordinator can and will do for you on your wedding day so that you, your family, that friend that’s really good at planing DIY parties for her office, and your fiancé can do your job : look amazing and enjoy the most elaborate party you’ve ever thrown.