Knowing how to find the North Star in the northern hemisphere is definitely one of the most basic navigational skills that everyone should know - being lost in the wilderness without a compass is not the time to be trying to figure out where the North Star is.
HowStuffWorks "Finding the True North with Moon and Stars"
21 Things Your Burglar Won’t Tell You! Put your car keys by your bed at night. If you hear someone breaking in, just push the panic button on your key fob. All the neighbors will hear. Lots of good ideas to keep safe in this post. Great links to emergency preparedness too