Water Purifier: You don't need to panic-buy a bunch of bottled water to reach the recommended two weeks of water in any emergency kit. It's just a lot of wasted plastic. It's unlikely anything will happen to your water supply. The easiest method? Snag a Pur water pitcher (Amazon, Target) to filter your water if you're nervous. It's also nice to have a Lifestraw stashed somewhere safe; it'll be good enough for most emergencies. The straw is selling out fast so this Lifestraw bottle is another alternative (Amazon, Target).