So I came up with my own system.
This way, when it's time to put them all back on I know exactly where each one originally was. Because sometimes you have different shaped screws, and this helpful tip will eliminate the frustration of figuring out where each one goes.
On another note, look what I just found this morning in my neighbors trash!
I love the shape of the frame, not sure what I will do with it yet. But some spray paint may be in order :)