It’s no doubt that most of the developed world lives with the luxury of disposable everyday items and nearly immediate replacement from a well-planned out supply chain store. But you must always consider what would happen if the supply chain for household items, hygiene products, food, water and tools stopped being available. In order to prepare for such an event, preppers around the world save, reuse and re-purpose many items that other folks tend to toss in the trash can.

Related: 10 Great Depression Era Strategies For Saving Money

Without further explanation, here are 23 things that a prepper should never throw away.

  1. Dryer Lint: Dryer lint is extremely flammable. Dryer lint is an easy item to collect, compresses to save on space, and will help to get a fire going for cooking and staying warm when the power is out.
  1. Plastic Soda & Water Bottles: Plastic bottles have many uses, but one of the main things they’ll be used for by the prepper is for drinking water.  Water glasses break and need replacing. Plastic bottles won’t break when you drop them; they’re light weight and can be sealed for transport. With a drop of bleach, preppers can store fill and store an otherwise empty plastic bottle with water, every day, for long-term use while the lights are still on.
  1. Old Shoes & Boots: Most folks buy new shoes when the pair they have starts to look dingy, but are still very functional. Clothing one’s feet is something the prepper can’t forget to plan for in SHTF. If nothing else by saving old shoes, the prepper will create a wealth of barter items to trade with people. And you can bet the value of a pair of shoes in a post-apocalyptic world are going to be fairly high. Here’s how to make your boots last longer.
  1. Old Clothes: Just like old shoes, we tend to give away clothing or throw it away when we have a small hole or stain on our shirt. The prepper knows that he can still use that clothing for wear in a survival situation, but he can use the fabric to mend, replace and re-purpose many household items. Many people don’t consider sources of fabric in SHTF, but old clothes are great for that.
  1. Wood Scraps: This goes without saying, but wood scraps should always be collected, kept organized, stacked and dry. While it’s easy to toss scrap wood in the trash, consider the need to keep a cooking fire going if you haven’t had power for 3 weeks.
  1. Cord, String and Rope Pieces: From sewing clothing to securing shelter, string, cord and rope will be a highly-valued item that the prepper should never “toss to the curb”. It’s very easy to fold, wrap and store spare cordage, so never throw it out!
  1. Wire: There are two types of wire the prepper should never throw away – conductive and non-conductive wire. Conductive wire should be saved as barter pieces for barter for electrical repair or for making a tin can directional WiFi antenna to extend your communication after an EMP. Non-conductive wire should be saved for utility and fastener use. Don’t throw even a hand length piece of wire away. Instead organize it, and put it away in a dry spot.
  1. Spare nuts, bolts and screws: In an extended grid down situation, folks will eventually set up some form of commerce. If you’re astute, you can provide income for your family post SHTF and repair items as needed collecting all the spare fasteners that most folks throw in the garbage. Additionally, here’s a comprehensive list with the tools you will need when SHTF.
  1. Used Candles: The prepper can scrape out the last little bit of wax in used candles. When enough wax is collected it can be melted and consolidated to one candle container. New wicks are fairly easy to make. When the lights go out for good, a source of light like candles will be invaluable. Here’s how to make 30 hours survival candles with soy wax.
  1. Broken Crayons: Children are great for making broken crayons, but don’t throw the broken ones away!   Instead, remove the wrappers and throw the pieces in with your saved used candle pieces so they too can be used to make more candles.
  1. Broken Pencils: Broken pencils can be cut in half long way, exposing graphite. The prepper can store them in the glove box of a car. When either end of exposed graphite in the pencil is hooked up to a car batter and cable, it turns red hot and bursts into flames. Every prepper’s bug-out vehicle should have a bag of cut in half pencils. Don’t throw them out.