It appears that CostCo has the LifeStraws back in stock. For a fire-and-forget solution , these are pretty good. Throw one in your hunting pack, BOB, etc, and be done with it.

These make excellent gifts (especially for Paratus) to the rest of your team, cadre, clan, cell, unit, stick, squad, group, tribe, wing, detail, or gang. (Dang if there aren’t a lot of metaphors for ‘small group’!)
As you can see in the picture, CostCo is also selling some Mountain House these days. As the summer season approaches it seems CostCo is getting in ‘camping supplies’. And, lets not dance around it, on a Venn diagram there’s a lot of overlap between ‘camping’ and ‘preparedness’ supplies.
Anyway, head off to CostCo and grab a pack of these so you don’t wind up like these guys.