Prearranged meeting place
Technically, this is not included in the kit, but communication is the first thing to take care of when preparing for an emergency. There's no telling when it will strike, and if you have young grandchildren, they'll likely be at school or an activity. During a natural disaster, or heaven-forbid, a terrorist attack, cell phone signals and landlines can often be jammed or out of order—you'll want to have a prearranged spot where you, your kids, and grandkids know to meet. It could be somewhere close to your grandchild's school or at a centrally located family member's house. Assuming phone lines are working, you should also keep a contact sheet of important numbers.