Read all the way through to Pat's post about drinking the wine
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OK, just a thought here. I think I picked this up from the Red Cross or FEMA site after Katrina.
With all the active families with cell phones now days you need a contact plan. Everybody just assumes they'll call all the family in the area. The towers may be down, phones decharged, lost and individuals making their way out of the area to evacuation shelters.
Every family member that runs around town by themselves needs to know the number to a contact person outside the area/state/region. In a disaster call that number and "check in". Little ones should be able to give "Granny Mary Johnson in Bugtussle, MO."
Pete