Although I've got a handful of LifeStraws (Personal and Family) now, I'll probably be buying one of those Sawyers on my next trip to REI. They're so cheap for what they can do, why not? Backwash? Smackwash! I'll have so many of these things laying around in my collection that I'll just grab a new filter when one clogs. I'm an admitted flash-a-holic, with more flashlights laying around than I know what to do with. Is there such a thing as a filt-a-holic? It's not like I really ever, ahem, use the things. I'm just well prepared for any drinking disasters I might run into.