Why doesn't notes ask to "save"
I sometimes use "Notes" to actually take notes in class on my macbook pro. Recently I've lost several of these notes because I forgot to his save before I closed the window, even if I do so after several hours of the Notes window remaining open. Is there any way to set notes to autosave, or even ask me if I want to save before closing the window? I'm kind of surprised that Notes doesn't autosave by default.
MacBook Pro, OS X Mountain Lion (10.8.2)