Here's another project using the Waverly for Bernat yarn.
The horizontal lines are the cable stitch I learned how to do in my crochet course - a stitch that no one really uses anymore. I can see why - it's a pain to work, but I do like the result! The strap is just rows of 4 sc, then I bordered it all with sc.
The main thing that's different about this bag is the inside.
I made a plastic canvas frame for the inside. The sides and base are a single piece, with smaller pieces sewn into the sides.
After sewing together the plastic canvas pieces, I worked buttonhole stitch along the top, plus an extra row of running stitch, just for appearances. After placing the frame inside the bag, I worked joined it to the bag itself using the button hole stitches to sc into. Without the frame, I felt the bag was just too floppy for use. That drape is great for shawls, but not so good for bags!