Drink Your Own Urine
Enter the LifePack ($28.84 from Amazon.com), a portable water filtration device used by the Army to provide soldiers with three days of drinking water from any source. The website says you can filter "contaminated water sources," but never quite says what we're all thinking. So we will. With this magical device, you can drink your own urine!
Simply relieve yourself into the filter, add a shot of "sports drink syrup," and soon you'll be fully hydrated, and possibly a bit ashamed. Either way, you'll have a much better chance at survival than your non-pee-drinking neighbor.
Is it a solution to the impending world water shortage crisis? Probably not. But in these uncertain times, you can never be overprepared.
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