I called people to ask for addresses I did not have. I created an Excel spreadsheet to manage the process.
i live off excel spreadsheets for work so it was very natural for me to also use one for planning my wedding. as we got the responses in, it was so easy to tally up the amount of attendees, outsanding rsvps, hotel room bookings etc. excel adds it all up for you!
I agree with PPs...Im using Excel to manage the addresses, number of guests, and RSVPs.Definitely try to get most of your addresses in person, either through phone or face to face...it seems more personal and gets the guests excited about getting their invites/STDs in the mail.