Water purification devices/tablets/powders
Weapons, there are those who will TRY to take what they didn't plan for.
Food supply (3-6 months)- freeze dried foods- beans - rice - spices
Camping "pots/pans" - source of fire
Survival reference book, poisonous plant ident, basic shelter construction,etc.
Medications - antibiotics - bandages - surgery "kit"
Barter materials - money will be useless -
Know the locations of the nearest telecommunications buildings. "phone company". These buildings have "hardened" structures, fuel, generators,
supplies, and communications with other survivers.