I have the most stubborn 5 year old in the world! She loves making a mess but will not tidy up after herself - I have tried making it fun, positive encouragement, praising her 2 year old sister to see if that works but no. I have tried the threat of a bin bag and carried it out, I have explained to her how upsetting i find it that she will not help me and that if she did it we could play more but that doesn't work. She will accept any amount of punishment, criticism to no avail. I have a demanding job and I am trying to run a home - I don't want to be on at her all of the time but how do I get her to do it? She has always been very stubborn in this regard and it is really getting me down telling her off. Any suggestions would be greatly apprecaited .