|TIP: Directional Stitching Prevents Stretching
Sewing seams in the proper direction will prevent stretching. The diagram shows where stay-stitching is usually needed, and the arrows show how to do it directionally.
I tend to forget about doing this when I'm eagerly sewing a project, but since I found this diagram and printed it out, it reminds me to stitch in the proper direction for better results. I didn't notice any other posts on this, so thought I'd mention it. HTH
From Coats and Clark, Sewing A-Z:
Stay-stitching is done on the separate garment pieces, the first thing after cutting and marking, through a single thickness. When an interfacing or an underlining is added, however, the stitching that attaches it serves as stay-stitching, and is done DIRECTIONALLY where required.
STAY-STITCHING is machine stitching used to stabilize fabric cut on curved and bias edges to prevent stretching the edge during garment construction.
DIRECTIONAL stitching is used when sewing garment pieces together to help prevent stretching the seam.
Another link to directional stitching and staystitching:
"Basic Directional Stitching to Sew Staystitching and Seams"