Here is what you need:
a table runner or 3 - 4 placemats
Here are the placemats I bought last year.
You will leave the width of the runner intact, cutting only lengthwise.
Start by cutting the runner to the depth you want yours. to be plus 2" I cut mine 14" long. I used the middle part of the runner and reserved the finished ends for...
With the other side of the tote right side up, lay larger strip on top, lining up the bottom ends. Pin. Now, sew down the middle of the strip to create pockets.