Have you guys heard of the Life Straw?! It's an award winning straw that removes 99.99999% of waterborne bacteria and surpasses EPA standards for water filters. Right now it is only $12.50 instead of $20!! This is such a convenient piece of equipment to have if you like to go camping, hiking or spend any time outdoors. If you aren't much of an outdoorsy person, this is perfect to have for your 72-Hour kit! I have never seen these go on sale and I bought mine for regular price ($20) because I wanted one so bad. Keep in mind that Amazon prices are subject to change at any time.