I hung piece of shade cloth up after I was released from the salt mine yesterday. It's a decorative thing that Mrs. Augie bought for the swim dock. Not really what I need, but it will be better than nothing until I can acquire the proper materials.
This is what I came up with to hold the door open. It's just a little piece of flat steel with a keyhole slot cut in one end. Cheap, easy to open and shut. Works great.