Today I was once again reminded that while learning from one’s mistakes is not efficient, it is effective.
I am also reminded that no matter how much I think I have thought things through, there are some things that we only learn by doing, and that is what I did today.
The day started out smoothly enough. I walked the dog, ate breakfast, and then settled in to crochet the two corner triangles needed to complete the central part of my 2012 North Carolina State Fair project:

which, in short order, I attached where they were needed.
Brown on the top left:

and burgundy on the top right:

I then spent a lot of time finishing a border piece I was making in medium thyme, but when I laid out the pieces of the border that I had already completed and that form the first round of the border, I was troubled as the pieces looked far too long.
I decided I had better find out if the piece I had made would fit while I still had time to change course if needed.
I attached one of the medium purple strips along the left vertical edge and found that it looked more than a little ruffled:

Before jettisoning the pieces I had already made, I made another, shorter medium purple piece and when I attached it, the fit was much better:

Concerned that I would not have enough time to frog everything and remake the border pieces, I did a test, and found that the three remaining pieces that I have already made can (with great care and some weaving in of ends) be cut and made to fit properly.
So that will, no doubt, be the first order business when I get up tomorrow, so that I can finish this:

and turn it in by Monday at 1:00 pm.