You don’t need a huge space to store emergency supplies if you plan wisely. Use every inch of your storage space for efficiency and necessity. When buying emergency supplies, look for stackable items with minimal packaging or that serve multiple purposes (multi-function items are great because you get the benefits of multiple tools without using up all that storage space). For example, MREs don’t take as much space as individual ingredients. Buying freeze-dried food instead of ready-to-eat foods lets you store even more in a smaller area.
In an ideal world, you’d bring along duplicates for every item in your survival kit. This way, if one breaks, you’ve got a back up at the ready. “Two is one, and one is none,” as the saying goes. But in the real world, your outdoor activities will place weight and space restrictions on the size of your survival kit. You can’t very well bring multiple knives, several flashlights and two pairs of pliers if you are trying to go ultralight camping in the Sierra Nevadas.
According to Hobel, shelter is your first priority. Lay down cardboard and other materials to insulate yourself from the ground. (Even in summer, the ground can have temperatures that lead to hypothermic conditions.) Use tarps, blankets, pillows—whatever you can find—to build the shelter on that layer. It should be as low to the ground as possible, and you shouldn’t be able to sit up when you’re inside, Hobel says. Other than the airflow you need to breathe, block all openings to keep cold air from coming in. It’s a matter of conserving heat. A lot of people don’t realize that their bodies are heat sources, Hobel says. You’re almost 100 degrees. Trap that heat around you instead of letting it rise in a tall shelter, and you won’t need a fire to stay warm.
"Mini survival kits" or "Altoids tin" survival kits are small kits that contain a few basic survival tools. These kits often include a small compass, waterproof matches, minimum fishing tackle, large plastic bag, small candle, jigsaw blade, craft knife or scalpel blade, and/or a safety pin/s. Pre-packaged survival kits may also include instructions in survival techniques, including fire-starting or first aid methods. In addition, parachute cord can be wrapped around the tin. The parachute cord can be used for setting up an emergency shelter or snaring small animals. They are designed to fit within a container roughly the size of a mint tin.