Water FilterSawyer Mini Filter
It's a fresh water filter. I still need a backpacking filter so I could drink toxic sludge, but this with the combination of water purification tablets is a nice start.
I saved a little bulk by moving it all to a ziploc small plastic bag. It's much easier to pack this way.
Fleece BlanketColeman Stratus Fleece Sleeping Bag Liner
Coleman calls this a fleece sleeping bag, or sleeping bag liner, but it's really a thin fleece blanket with zippers. For some people this would be a luxury item, but the missus and I aren't in the greatest health. This item should give a little extra oomph to the mylar emergency blankets and emergency bvivy that are already in the bag.
Right now I have it strapped to the top until I can either stuff it into the main compartment or stuff it into a compression bag and try to stuff that in. But it's probably fine where it is if it comes to that. It doesn't change the fit of the pack.
Compact Absorbent TowelPackTowl Camp Towel
Warm and dry kind of go together, so it seemed logical to get one of these super-absorbent backpacking towels for the disaster bag. They absorb about 10 times their weight in water and wring out almost completely dry. I try to imagine likely disaster scenarios that would have us on living out of a backpack like this, and being cold and wet seems like a reasonably-likely scenario. The missus and I aren't what most would consider to be tiny people, so I got the large size. Holding it my hand, it's much lighter than I thought it would be.
Marker LightLambda Light Nano Marker
This is a nice little gadget. The manufacturer claims that the batch I bought mine from is the last batch they will ever make, so I'm lucky to have these. At only a few grams in weight, it can be seen for hundreds of yards with dark adjusted eyes. It's supposed to last a year on two SR48 batteries so I'm excited to have one on my disaster bag, which you can see above if you look closely enough.
The heavier brass one is on my laptop bag, which doesn't care about the few extra grams of weight.