Don't cut the threads off where you start. That will tell you which end you started on. Once you start the next seam, then clip the thread off. I do the same thing when I do stitch in the ditch. I alternate which side of the quilt I start from for the same reason. I don't know if it makes that much difference when quilting, but I don't take a chance with it.

Hey there! Hon as long as I have been quilting this is a new one for me. I will have to read all the answers and learn with you.Love from Ok.

Followup note from WOOHOOWENDY ---- Thank you and hugs to all you lovely people with the great tips to help me REMEMBER which direction I was stitching each row, if interrupted. You are all so kind to offer your ideas after I posted my question earlier in this thread.
Thanks again to all you talented people. And happy stitching!

Wendy
(AKA "woohoowendy")

I think it has something to do with the grain of the fabric, cross wise it will stretch and length wise should not stretch.
So, that's why you sew one way and then sew the other way for the next strip if you use WOF cuts. Just remember Sew up, Sew down and use a pin to remind yourself where you stopped sewing. I hope I did not confuse anyone.

I sew the two strips together and continue sewing the additional strips (without breaking the thread) so that I have one continuous line of two strips sewn together. When I have that finished, I cut the threads holding all the two strips together, place them in the NEW direction and start back in the other direction sewing the 3rd strip. If I'm doing strip piecing, I continue doing this until all are done. I learned this the hard way when putting my first quilt together--a Twisted Bargello. Unfortunately, because I didn't know this my Bargello "twisted before its time!"