you might get some not so obvious ideas from lessons learned with hurricane supplies I've accumulated...hope this helps

water...blue 6gal storage containers year around, Sawyer .1 micron filter

33gal Rubbermaid trash can placed in shower/tub and under eaves, filled with water to flush and shower with, you still have access to tub drain...pump up lawn sprayer for shower

several bottles unscented bleach...disinfect and water purification

I've switched from Coleman fuel to propane...several 20# propane tanks and adapter to refill 1#bottles and bulk feed hose.. 2burner stove, backed up by Trangia alcohol stove, and catalytic heater...couple of 6 gal gasoline containers

several Dietz style kero lanterns/fuel....LED head lamps and LED flashlight with clip attached so you don't loose it....cyalume light sticks....try to standardize batteries

several 3 day Igloo ice chests... one for food, one for ice

cordless drill, charger, and extra battery....couple of boxes of 2 and 3 inch deck screws with extra bits... hammer/ nails...wonder bar...duct tape and some plastic sheeting..vise grip pliers...straight/Phillips screwdriver (I back up the cordless with a Yankee Screwdriver... I have 28 windows to board up.

blue tarps and firring strips / roof mastic to cover roof damage

battery powered fan, (an auto battery with a couple of clips on a female lighter plug adapter is a good power tap) portable digital TV, dynamo AM/FM radio...running a generator really aggrivates your neighbors that don't have one, so offer to share power to keep their refrigerator up...lineman's handset style of phone with home made clips

30day supply of canned supplies and plastic ware.. baby wipes ..toilet paper

in addition to my blow out trauma kit (Israeli bandages, Kerlix,tourniquet,NPA tube, QuickClot bag), the house kit has dental and additional burn dressings, sterile saline for irrigation...hand sanitizer...N95/100 face masks...squeeze bottle of H202 to disinfect surfaces

good GoreTex or Helley Hanson PVC rain gear, good heavy duty shoes and way to dry feet (Teva sandals indoors)...citronella bucket/ Deep Woods Off... mosquito netting...air mattress...sleeping bag

if you have to open your house for ventilation, battery powered motion sensing alarm

I'm a competitive shooter so some form of blaster is close

it really helps to store the less bulky stuff in the same shelf area