Things to prep besides food

Ways to cook
You need at least two forms of off grid cooking. And it it's not that difficult to do. But you may learn how do USE each item you have. If you have the items,  but do not know how to use them,  don't waste your money.

A barbecue grill is fantastic - especially if it does gas, charcoal and wood.
A kerosene single burner gas stove works well also. They are small,  fuel efficient and that cook exactly like a gas stove
A propane camp stove
Solar oven
Haybox oven, thermal oven, wonder oven
Propane oven
Herc oven
Penny Stove

Medical supplies
Medical tape
Cotton balls
Cotton gauze
Tweezers
Antibiotic ointment
Alcohol
Peroxide
Super glue
Strong soap
Razor blades
Suture kit
Gatorade powder

Sewing Supplies
Cotton buttonhole thread
An assortment of sewing needles
Several thimbles
Misc threads
2 pair scissors,  1 large,  1 small
Measure tape

Ways to Heat a cold room
Heat is essential in cold areas. A little heat can save your life.

Wool blankets with a cotton sheet
Reflective survival blanket.. But you must know how to use this
Hot water bottles
Liquid fuel heating pad /unit
Chemical hot pad
Reusable /rechargeable hot pad
A tent to make the room smaller
Camp heater

Ways to cool down
Water Spray mister
Alcohol spray
Hand fan
Swamp cooler (most require electricity)
Solar powered fan
Cold drinks

Hot water bottles and their uses

You may think my crazy, but I love water bottles.  Really!

Historically, the original practice was to use hot rocks from beside the fire to put in a bed. Later, it became metal boxes filled with hot coals from the fire that were put in the bed and later removed. Only the rich could afford the boxes with long handles so the poor still used plain rocks.

The modern derivative are made of flexible pvc or vinyl. Consigned to the pharmacy isles, no one thinks about just how convenient these wonders are.

I use them at work on my back when is hurting. One quick fill in the sink or a partial fill at the coffee maker (with water already inside) and I am set for hours.

In the winter, one goes to the car with me. It will either sit in my lap to help my hands unfreeze or sit in the floorboard to keep my toes warm. Ran over the inside of the windshield, it can even help clear the ice.

When I have a sick pet, I put one in the bed with hot or cold water as needed. In the winter they appreciate the extra warmth and in the summer it becomes a cooler place to sit.

I use them in bed in the winter on cold nights. When the electricity goes off, I fill them from the hot water heater and put them into bed with me.

When I am working at a desk in the winter and the floor is cold, I put one on the floor in a towel to put my feet on. Working is so much more comfortable with toasty feet.

In a tent on cool nights, I use water that has been close by the fire. They help keep the tent and bedding warmer.

When a friend had surgery and needed flexible ice packs, they came in handy. I filled them ½ with water and ½ with rubbing alcohol. They freez and stay flexible and will not bust if dropped.

The best thing?  They are sustainable.
In the summer, the used water goes on my garden. In the winter, it is returned to a pot on the heater. The pot provides humidity and a constant source of convenient hot water.

Another thing, if they are kept sanitised, the water is potable. So your pets and you always have a few cups of water available.