One class I went to the instructor insisted we iron the seams open. I had seen so many do this before and they for some reason burn their fingers. At the time I had a couple "craft/aka popsicle sticks. These worked just fine. I left her class early because she called me a wimp for using it and referred to wimping out a few times and glancing over at me directly. Anyway try a craft stick. Super cheap to use and purchase.