Sewing lesson: starting and finishing a stitch
When you sew there is a starting and ending point. Have you ever had the seam start to unravel or the thread come loose? Stitching a few stitches backward when you start and finish the stitch will secure the beginning and end of your stitch to prevent this.
How to properly start and finish a stitch
Simply start your stitch about 1/2″ ahead of where you would normally start. Then sew in reverse to the end of the fabric and sew forward as usual. When you get to the end of the stitch, sew in reverse about 1/2″.