This thread is almost like asking: 'anyone got any tips for being equipped to survive?'
Apart from the mirror, compass and whistle Dougs kit is a good example of a small 'utility' kit. Thread, string, fire, duct tape etc all have multi-uses. That's what being equipped to survive is.
One thing years of experience has taught me is that lots of people are not creative. They can't come up with ideas on their own. Giving their minds a nudge like this is a good thing that should be encouraged.
-Blast