We have decided not to do invitations, and are sending a nice email with all the travel and resort information. I find this way to be more efficient and less costly (we are on a tight budget and cutting costs wherever we can). A part of me is thinking that we should be doing a proper invite. Most of our guests already know the dates and have confirmed they are coming. Has anyone out there done an email for an invitation and how did it go over?! Silly thing to be worried over, I know... but I have been very indecisive on this and am running out of time!!