Normal lighter, waterproof matches, have backups.

Generally, the recommended daily calorie intake is 2,000 calories a day for women and 2,500 for men. You will need to prepare your rations on your own.

Recommended amount is 3 liters per member per day. 

Stock a lot of them. Type depends on your utilities. 

Suplement with vitamins, all members, daily. 

If you have to take meds - prepare and stack them! If you wear glasses - have a spare pair!

Warm ones. Very important to have dry spares to avoid trench foot

20k+ mah

Ultimate sun UV protection, wind, insects, snow / rain protection. Must have.

150-200 pieces will be nice to have in car. if your'e on foot, repack standard car first aid (if it arrived in plastic).

Sporks, dinner pails, all you need to prepare food and eat it. 

When water is sparse, this one is useful.

Toothbrush and paste

Needle + thread at minimum, small sewing kits will do best here. 

Warm ones. Good idea is to always have emergency sleeping bags in you car. https://www.survivalfrog.com/pages/tact-bivvy2-emergency-sleeping-bag?sscid=31k6_vhdrh 

Buy in bulk and keep a stock.

Hands are important, if you hurt them, you're in trouble. Get yourself a pair of tactical gloves for all heavier works. 

Can be mountaineering / trekking shoes. Choose solid ones, don't go for some cheap ones. 

Tarps are super universal, you can use it as a tent, wind protection, roof or as a part of your hut. 

Won't be easy to get, but these can save lives. Usual preppers' method is to stockpile fish or bird antibiotics as a last resort, in case human ones are impossible to get.

https://www.skilledsurvival.com/survival-antibiotics/

or Axe and Hatchet. For wood collecting

Fast-charge charger + USB cables. You don't want to look through your house what to disconnect. Keep spare ones prepared in your bag. 

There is a reason most of western MREs have a tab.

Small crowbar can help a lot

Really multi-purpose utility https://www.survivalistboards.com/threads/survival-camping-uses-for-electrical-tape.213206/

Let's just hope we won't need these...

Military ovens are fine if you're on foot. If you'e on car you can get tourist oven with gas fuel. Lower priority if you have a shovel and can dig your oven, but sometimes there might be no opportunity or time.

Super useful item, allows you to leave messages or markings. 

There will be a lot of emergency messages on FM waves. Small pocket radio or cheap Baofeng Ham radio with access to FM strongly recommended. 

to protect money, documents etc

Super useful

Depending on your area might be better than sleeping mat

One that will remain turned off and will have whole doomguard library downloaded. Can be an e-book reader, these are bigger but live longer.