Family marble jar! After a day of great team (family) behaviour..from everyone...you get a marble, marbles cam be awarded to each other for extra kindness or helpfulness etc. If anyone spoils it, the marble doesn't go in. If anyone is really bad, you all lose a marble. Once you get a certain number, say 30, you get to choose a family prize...day out, 10quid to spend each, etc. Means you're all in together and helps you see how one persons behaviour can affect others. Build some team work between you. They do it in my daughters class, she is 7 and all through her school and it seems to really work. Good luck. Parenting is really bloody hard. We aren't given a handbook and we all just Tey our best. The fa t you're asking doe help shows that. Be strong and kind to yourself.