Know how to behave at a buffet. Take a clean plate for a second helping.

Know how weather, especially humidity, can affect the movement of doors and windows.

Know how to drive safely when it's raining or when it's snowing. The two conditions are different.

Know what happens when an individual declares bankruptcy and how it affects his or her life.

Know how to travel from your town to a nearby town without a car, either by bus or by rail.

Know where to find the sunrise and sunset times and note how the sky looks at those times, at least once.