“There’s no ‘I’ in team!” Get your kids to do a chore together to learn about working as a team.
You’ve asked you child to tidy their toys away and they are just not listening. Give them a set time in which to complete the task and if there are any toys left on the floor, you get to keep them. They can buy them back with their pocket money or you choose a chore they have to complete to get the toy back.
If you think tiredness could be making your child moody, put them to bed five minutes earlier each night until their behaviour improves.
If your children are squabbling among themselves, get them to tell each other a silly riddle. They will (hopefully!) be amused enough to forget what they were fighting about. Funny faces work well for younger children.
If you ground your older children, make them earn their freedom by completing chores around the house. For example, tidying up will get them 50 points, washing up after dinner will earn them 35 points, etc. You can set how many points they need to earn depending on their misbehaviour.
Like with the toy collection above, if your children are always leaving their dirty clothes scattered about their bedroom floor, pick it up and add it to the ‘charity’ pile. If they want it back, they have to pay you for it or do a chore.
Have your child choose their own punishment. If they struggle to come up with anything fitting, give them some to choose from. It could be having to do a chore or write a sorry note to a disgruntled sibling, for example.
If you give your child a set amount of pocket money each week, deduct some for bad behaviour.