The only real change I made to any of my equipment, clothes or food was to purchase a Sawyer Squeeze water filter and try it in place of a gravity-feed water filter I've been using for the past 3 or 4 years. Having read the stories (here on this site) about failures of the squeeze bottles provided by Sawyer, I was careful not to abuse them. On the whole the Squeeze worked well for me and I intend to keep using it. I just hope I did ok when I stored it and it is still usable next year.