Nobody knows what threats and challenges will exist in a post-apocalyptic dystopia. That's why it's a good idea to be as prepared as possible with a survival kit, such as the $52 Ultimate Kit from Gerber Gear.
The Ultimate Kit packs every conceivable piece of must-have survival gear into its 4.5'' x 5.0'' sheath. Among the tools included in the kit are wire cutters, a signaling mirror, waterproof matches and land-to-air rescue instructions.