Generators (Good ones cost dearly. Gas storage, risky. Noisy...target of thieves; maintenance etc.) Water Filters/Purifiers Portable Toilets Seasoned Firewood. Wood takes about 6 - 12 months to become dried, for home uses. Lamp Oil, Wicks, Lamps (First Choice: Buy CLEAR oil. If scarce, stockpile ANY!) Coleman Fuel. Impossible to stockpile too much.