Good programming editors will show you how braces match up, even if the indentation is wrong. When I put my cursor on a brace (opening or closing), my preferred editor both highlights the matching brace and provides a keystroke to jump to the matching brace, so I can always easily determine how they match up if I'm not sure.

Your "one brace to close them all" idea is not needed if you have a decent editor - and, incidentally, would most likely break this feature in many/most/all editors which provide it.