Water Filter – A high-quality water filter, designed for filtering untreated water can help you extend you water supply by recycling gray water and/or use water sources outside your home.
Hand-Crank Radio – Hand crank radios offer the ability to listen to important communications when power and cell networks are down. Some hand crank radios even offer a USB charging functionality.
Camp Stove – There are a million options available for this purpose – everything from handy backpacking stoves to heavy-duty outdoor ranges – but it’s hard to beat the old self-contained Coleman camp stove.
Can Opener/Multi-Tool – It’s a good idea to carry a survival knife, but it’s a great idea to carry a quality multi-tool, like a Leatherman. A Leatherman comes in handy almost every day under normal circumstances and could be used as a weapon in a pinch.
Flashlights – When it comes to flashlights, I have two recommendations, and neither one is expensive. First, find a comfortable LED headlamp. Second, rather than finding the brightest, most high-tech available, invest in a Maglite LED that runs on simple AA batteries.
Batteries – Obviously, you’ll need to coordinate your battery storage plan with any of the flashlights, radios, or other devices you may keep in your emergency stockpile. Batteries will last longest in cool dry conditions, but should be rotated out of your emergency supply on a yearly basis.