I went to one of those outlet malls today. My sister broke a few of those glass tops of her corning wares and wanted me to buy some for replacement. The corningware store in the mall is the only place I know that you can buy the covers, glass or plastic, only. Since I was there and the shopping crowd was not that crazy, I shopped around and ended up buying myself a tote as a birthday gift. The tote has a compartment for a 13" Mac Book which means lots of room for my ipad
It's perfect as I can put the ipad with it's porfolio case inside.