instead of cardboard a friend said she used plastic canvas(with the holes in it) to put in her sleeve, would be washable then, but just slipping it in, it would wander around and not stay "on the bottom" maybe will try to hand sew the "sleeve" to the bottom, but to make it washable would have to use a plastic instead of cardboard. (sigh) more hand work, more time spent? you are really creative, and making some neat purses! last one I made I used Dr. Seuss fabric--how cute is that? maybe the mega for a diaper bag? as you can see in my Avatar, I love Dr. Seuss- couldn't find fabric at the time so made my own.