Activity for Kaitlyn

I have a wedding website on wedding wire and a I went to in wedding the past had RSVP online. Have any of you done online RSVP? Did you still just buy RSVP cards? And how did you word it on your invitations? Thanks loves!

I am getting married in June, and in need of a wedding hashtag for : Rosenboom! Wanting something different, not the typical HappilyEverRosenboom, something different! Thanks