One more thing to think about: fire.
As someone who has been cold, wet, hungry, and downright miserable more times than I care to remember, these days the last thing I am going to do is rub 2 sticks together to make a fire. So you will find in my kits several ways to make fire and, I will carry most of that either in a pocket or on my belt. None of it is heavy. A couple BIC lighters, some strike anywhere matches kept in an old pill bottle, and a flint / magnesium bar combination.
For tinder, I have old pill bottles stuffed with dryer lint, or cotton balls, or cotton balls soaked in vaseline. I also carry in most of the kits a small bottle of hand sanitizer. It doesn't matter if it is the gel or liquid. It's the high concentration, usually 70% or 80% alcohol by volume. I guess you could always carry some Everclear or FireBall. Both can also be used for fire.
With what I just listed in this post alone, there is no good reason for anyone to be cold and hungry. And, I'll bet, outside of the Everclear and FireBall for some of you, you all have the rest in your house. Or most of it.