Have each member of the family sign and date it. Signing it commits all family members to abide by the rules. Make a copy for each person to keep as a reminder, and also post copies around the house. Follow the Rules. Both you and your children now need to follow the rules and enforce consequences.
Consistency is the foundation of every successful plan.
Update the rules as necessary. As you live the discipline plan, you will find that some rules are irrelevant, some consequences ineffective, and new rules need to be added. When this happens, call another family meeting to update the contracts. Follow the steps above, and create new contracts. Subsequent meetings will take substantially less time, and will keep the rules relevant and effective.