If you’re an outdoors person, you know that finding fresh drinking water in the wilderness is a chore (purification packets, boiling and cooling, etc.).
The LifeStraw completely changes this. Designed for the harsh conditions of Africa, this little sucker (har har) is ingeniously simple: all you do is suck water through it and the filter removes 99.9% of bacteria and nearly all waterborne parasites (it provides five times more filtration than the EPA standard). It also lasts for about 1,000 liters, at which point water will no longer pass through it (preventing overuse).