"Every single time you talk to [your children], force yourself to smile... When you speak while you're smiling, your tone of voice changes, and you will find that the words that come out of your mouth are more gracious.
Talk to your children about this, and help them to do the same thing... It is hard to complain and whine while smiling."
Large Family Logistics
Appendix A: Coping While Exhausted and Overwhelmed