A baggie full of AAA
batteries and a
head-lamp light using them. Get one with multiple LED's so if one burns out (they eventually do) you have still some light. The head-lamps are so useful we keep one for each family member hung on the hall coat racks, for chores or power outages.
Pick an
antibiotic you're not allergic to, and pack some. Cipro and Keflex are cheap now, and decent for lots of respiratory and urinary and skin infections. Cipro and Doxycycline are good for some of the weird/terror infections that are possible, but DON'T EVER use outdated doxycyline (or any tetracycline) for they turn into a toxic chemical which will cause permanent kidney damage.
Consider 'modular' packs, where you have a big duffle/backpack you can put everything in, and several smaller packs to load it up with or grab individually. We found some combination duffle/backpacks at CheaperThanDirt big enough you can put a 5-gallon pail with a screw-top lid in them

, and have another couple 'gallons' of room for a sleeping bag or whatever, plus some side pouches. You can keep
little separate packs with things you need to rotate like food or batteries (keep them OUT of the devices in case they corrode), and you may want some
expensive things or things you also use for other times, like radios, binoculars, or guns, separately.
Don't forget zip-locks, trash bags, and lots of extra socks

and maybe a deck of cards.
CONSIDER once a month or even each weekend, spending 24-48 hours 'off the grid' with your family. You can get used to what you need and how do live out of a backpack that way. In the summer we will sometimes grab our 'go' packs and head out to spend the night or weekend at the little 'shelter house' we use for a range that is behind our house. It isn't exactly a trip to Alaska, but it gets us away from the conveniences we're all too used to these days.
Just some thoughts I had...
