Know how to treat frostbite until you can get indoors.

Be able to defend your arguments in a rational way. Otherwise, all you have is an opinion.

Be able to decline a date so gracefully that the person isn't embarrassed that he or she asked.

The 40s are when you start trading your psychological problems for physical ones.

While you're writing, you can't concentrate nearly as well on what the speaker is saying.

Common sense comes from experience, and kids need to fail as well as succeed in order to learn it. It's difficult to develop common sense when you spend a lot of time in your room where nothing much happens.

Be able to go shopping for a bathing suit and not become depressed afterward.