Pillowcase as Chair Cover

I usually use 2 pillow cases for our bed. Recently one wore out. What to do with the other? I came up with the idea of putting it on the back of my extra dining room chairs that are put away in storage. This also works great if you have children with sticky fingers at the table. The case slips perfectly over a chair. Now I am on the hunt for odd ones at the thrift shop for my other chairs in storage. :)