#922: Receiving your very first RSVP

You gotta have extra love for that one early bird guest who RSVP's the minute they receive your invitation. It's definitely awesome to get that first one in–either via e-mail/phone call/mail, because a) that means people are actually receiving your invitations and b) it means that wedding guest count is officially underway. How did you get people to RSVP? Through digital means or via snail mail?