What's about displaying a horizontal bar like that one on the Trash when you navigate to a folder where you don't have permissions to create new files, with a button that would allow you to switch it into "root mode" on that window (introducing the password into a prompt if it wasn't used recently, of course) until you visit a folder owned by you?
What's about displaying a horizontal bar like that one on the Trash when you navigate to a folder where you don't have permissions to create new files, with a button that would allow you to switch it into "root mode" on that window (introducing the password into a prompt if it wasn't used recently, of course) until you visit a folder owned by you?