I iron them when a little damp from line drying or use the steam setting and \"block\" them as I go to recreate the perfect square every time. The biggest problem with these is that they are not a perfect or even close to perfect square, so when you iron them and fold them the corners do not align. As you can tell from the rating, I'm very disappointed with the Hotel Tablecloth and Napkins. Rated 5 out of 5 by Calmbreeze from Love these napkins I have been using these napkins for years. When I went to do it this year, despite it offering a 3 letter monogram option online (and the SAME napkin with the border shows a 3 letter monogram), it only let me enter one letter.