I usually chain piece the two opposing sides, then press the seam as it lays, then open it and press them. Then I go back and sew the other two opposing sides and then press the seam as it lays again and then open it and press the last two. Goes really fast for me. I wish I could find another place to put my ironing board, but due to lack of room, my ironing is done in my sewing room. I do need the exercise. I have "Quilter's Butt".