Number your RSVPs! Smartest advice I saw on Pinterest for wedding planning! Number the bottom of the RSVP card and log who has which number on a spreadsheet. Easiest way to track who still owes you an RSVP. When you don't get them back (and there will be many that you won't, its just how it goes) you know exactly who to confirm with. GENIUS!!!
#1: The part where you gaze longingly at cocktails in mason jars on Pinterest and decide what your wedding "look" will be really only lasts five minutes. Most of your time is spent researching and interviewing vendors, reviewing contracts, writing checks, and trying to get through the never-ending next items on your to-do list.