Pack a coffee filter. Easy to find where they make the coffee at work, at home, etc.
Fold flat , light weight, easy to carry.
Pre-filter your H2o with a bandana, T-shirt, or even a sock, then use the coffee filter as the final filter. They can be rinsed out an re-used. Probably the best filtering material out there for the pennies.
A paper towel also does a respectable job of filtering sediment, as does newspaper.
None of this means it kills the germs, use your chlorine or boil as usual. Even when boiled, we would rather not drink murky, dirty water.
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In the film vial, with the PJ cotton balls, place a small chunk of firesteel and piece of hacksaw blade. Doesn't need to be much, but is nice to have the sparker packed with the tinder.
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A wooden pencil. It's a compact stick of dry tinder, ready to be wittled off when needed.