ladies maybe the rest of you are smarter about this than I was, but it didn't occur to me to make sure I was aware of how the weight and size of my invitations impacted my postage costs. almost all of the money I saved by buying invitations from Michaels (1 box at a time with a 40% off coupon each time) and printing them at home was eaten back up by additional postage costs that I could have avoided if I had thought about this before selecting my invites. Argh. Because there was a ribbon tied around each invitation there was a slight lump in the envelope, which meant the invites had to be hand stamped by the post office and couldn't go through a machine. That is an extra cost. Tri-fold invitations and inserts add to weight, which can add to postage costs too.