Step 5: Step 5:

Picture of Step 5:
Sew the side seams of the denim and the lining pieces and then both bottom seams.   Now comes the MAGIC!  Fold the side seam to match the bottom seam to make a point.  Now sew across the point.  By doing so, a "bottom" is created.   Notice the ruler is lined up with the seam in the center at 1 1/2" with the left end of the ruler touching the folded purse and the right side of the ruler touching the other fold at 3".  Mark and then stitch across this line