TextEdit Notes

TextEdit makes a great notepad, except for this screen appearing whenever you try to quit the app:

I don't need to save the notes anywhere, I'd rather OS X just manage them, restoring them when I relaunch.

In System Preferences > General, uncheck "Close windows when quitting an application". Now TextEdit will close automatically, without a save prompt. When you next open it, all your unsaved windows will be restored :)

Notes galore.