List of the piles I make:
-Pile of books near computer/window/light source
-Sewing Kit, threads, and clothes that I want to patch up in a pile near the aforementioned light source
-Separate piles for rags, leather/fur, plastic chunks/kevlar/nomex, all near the light source for sewing and repairing armor
-Pile of usable wood and nails
-Pile of scrap metal, steel, and pipes
-Pile of kindling. This includes splintered wood, wool clothes that I don’t want, paper, and rotten food.
-Pile of food near my fireplace for easy cooking
-Pile of tools specifically used for cooking food and chemicals, next to the food pile
-Pile of chemistry ingredients on the opposite side of the fireplace, as many of those require nearby fire as well.
-Pile of ranged weapons
-Pile of ammunition and spare weapon mods
-Pile of tools
-Pile of miscellaneous crafting supplies
-Separate spot for duct tape and batteries so I can easily grab them
-Pile of drugs and meds
-And finally, the “Essentials” pile right near the door, usually consisting of spare ammo for my current gun, a towel, a flashlight, a couple first aid kits and disinfectant bottles, one or two backpacks, a raincoat, some bandages, some clean water, and nonperishable food. This is essentially my OH SHIT pile, so that I can grab everything there and bug out of my shelter if I get attacked by a horde or something. It’s also the place where I store things that I’ll need in a minute, so I don’t lose track of them.
Then later I pick the piles up off the floor, construct a bookcase or display rack or bench or whatever’s most appropriate, and place them in that instead. Then when I find spray paint or a marker I label the floor in front of each pile for convenience.
One of these days I’ll build my own house and actually make separate rooms like a kitchen and master bedroom.