Have you given Stickies.app a try? It is designed exactly around this model (notes are never "saved" in a true sense, they just live all over your desktop, what

Have you given Stickies.app a try? It is designed exactly around this model (notes are never "saved" in a true sense, they just live all over your desktop, what you can do is export / import text however). Although I'd be surprised if you haven't.