In a large jacket with lots and lots of pockets (and also, preferably, heavy cargo pants), store pencils, a pistol, hammers, pocketknives, steak knives, hairspray and a lighter, and the like. Carry an axe/bat/club/sword and a gun. Gather a little food, enough to last you about three days.
Go to the nearest walmart/Kmart/Costco (preferably Costco) with your friends/family and stay there. Board up the doors and any other entrances. THere will be enough food and supplies there to last for a long time, and if you run out of food, spread out all the soil and plant the seeds for food! THe ice in the freezers can be melted to make water to water the plants or drink. Light can be provided by flashlights.Eat only canned food or food that cannot go bad. If you brought pets, give them the pet food.
That's all