I had thought this project would work up quickly and that the purse would be ready for use in short order, but that is not how it has worked out, and today I finally accepted that fact.
So rather than trying to hurry my way through, I decided to savor it, just as I would a box of Godiva chocolates or a nice warm bubble bath.
I started with the lining, carefully cutting a rectangle that was 1″ longer and 1″ wider than the bag had been before I joined the sides and made the gusset.
Then I folded it in half, and pinned the side seams in place:

I had no interest in getting my long dormant sewing machine set up to sew to short seams, so I stitched them by hand instead with a matching pink embroidery floss:

With the side seams done, I moved onto the bottom of the bag and soon, the lining was ready to be inserted in the purse:

It was slightly awkward to attach the lining (if I were to make this bag again, I would attach the lining before I crocheted the mouth of the bag), but eventually, I got it done:

With the body of the bag nearly completed, I then turned my attention to the strap which I tarted up a bit with small, two round spirals of yellow and pink:

And if past is prologue, sometimes surrendering to a project is the fastest way to get it done.