I just remembered the conversation I had with the salesman at the convention!
I said that the screws were annoying.....he said he knew that.........I walked away and thought about it....then came back to him and said it would be much more practical to use wing nuts that you could tighten and losen with your fingers than carrying around a screwdriver all the time.
He said that would be a great idea! I just never have gone to look for the right kind of very short, flat bottomed bolts and wing nuts!
So funny.....just remembered that!