I use a wooden dowel with a flat end and my index fingernail and actually open all the seams. This enables you to sew the next piece with the latter one open. Of course, you eventually have to iron the piece, but it is so so much easier. Many quilters do not open all their seams but I've learned the hard way. There is much less wear and tear on your machine. It takes a little longer in the beginning but worth the time. God bless!!