I have a pair of scissors that a nurse left at my home. They were used to remove surgical stitches. They are very small and pointy. I can get under stitches about 4 apart and snip the thread. After doing this I can pull the thread on the back and it just comes off in one piece. Quick and easy and no stress on the fabric. I think they are available at medical supply stores. Haven't used a seam ripper since they were left here years ago.