Bill Rogers is a behaviour management 'guru' who has published some really great books that address the whole spectrum of this topic. I'd definitely recommend any supply teacher reads some of his material.
His theories include:
Positive Correction: the basic premise that teachers and schools should adopt a non-confrontational approach to discipline, based on positive teacher-student relationships, respect for the dignity and rights of individuals, choices about consequences of behaviour and encouragement for student self-discipline.
Prevention: planning for good behaviour; teaching the routines and the rules.
Consequences: have a clear structure that students understand and use to inform the choices they make.
Repair & Rebuild: the imperative to work hard to build and repair the damage that is done when things don’t work out.
It would be great to hear what works for you in the classroom...