I would personally add to your list something you are comfortable with getting a fire going in any weather.

I also take a small silnylon tarp - (in my case a silponcho). a tiny piece of silnylon is light
enough to warrant a place in my dayhike bag. It's handy enough If I get caught out, and also exceedingly useful if I get stuck or hurt in in bad weather and require an emergency bivy - either rigged as a tarp, or wrapped up in it waiting for help to arrive. IMO any injury I can still walk is minor <img src="/forums/images/graemlins/wink.gif" alt="" /> beyond that, anything
that happens to me that doesn't kill me outright would probably only kill me due to hypothermia, not the
injury itself.