With the quilted rectangle, I trimmed. Then added a binding at both short ends from more scraps. I keep a bag of leftover bias bindings because I always make a little too much. Next, I folded the rectangle in half with the bias edges touching and made french seams down the sides. Corner pleats and the bottom and handles at the top finished this bag. Very quick and easy. I'll keep this idea in mind when I have extras on the frame. Tote bags like this one will make a nice gift.
Enjoy your day!