Be an instrument of God's peace in your home. Refrain from the use of sarcasm, ridicule, or teasing as weapons against each other.
Make your household a witness for peace in the world. Sign "The Family Pledge of Nonviolence" available from the Families Against Violence Advocacy Network (Institute for Peace and Justice, 4144 Lindell Boulevard, #408, St. Louis, MO 63108). Commitments in this pledge include: respect self and others, communicate better, listen carefully, forgive, respect nature, play creatively, and be courageous. Periodically review how you are all doing with the pledge.
Identify "conflict resolution" projects in your community. Sometimes they are called "anger management" programs. Bring one of them to your church, synagogue, school, library, workplace, or other community center.