I just ordered my invitations so that I can get ready to send them out in just a few days. I picked out a rather simple design but something that was cute as FH and I are VERY near our budget. However, when I showed them to my mom she said they should have been fancier and should have tissue paper in them and that's "just how it's always been". lol I am unsure of what the tissue paper is used for or where I can get it. I just ordered flat invites that don't open up or anything like that. Does the tissue paper wrap around it? Or is it just an insert? Is this something I should be super concerned about? I haven't ever gotten an invite with tissue paper in it. Any advice?