1.Name guardian(s) in a separate freestanding document - NOT just in your will. Your will is completely INEFFECTIVE for naming a guardian in the event of your incapacity rather than death.
2.Exclude - in writing - anyone you would NEVER want to be the guardian of your children or be able to contest your guardianship decisions.
3.Provide detailed instructions and documentation of what to do and who to call in an emergency. This includes health care proxies for your minor children in case of your inability to make decisions on their behalf and detailed instructions for your guardian about the values, faith and family relationships that you feel are important to be passed on to your children.