Hello everyone! My name is Sheila and I live in Alabama. My grandmother taught me to quilt 30+ years ago. She was a little "rustic" and made her patterns out of brown paper grocery bags. Things have changed alot and I have learned so many tips since those days. Initially I never ironed a seam and wow!....is there a big advantage to doing so but I need clarification please. Do you press the seam to one side THEN open it up & press to lay flat? I always just pressed to one side but would like to know which way is better. Thanks!