Know how and how much to tip people who expect gratuities, even in the case of poor service.

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

Be able to read blueprints, diagrams, floorplans, and other diagrams used in the construction process.

Be in the habit of getting up bright and early on the weekends. Why waste such precious time in bed?

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

The only real meaning in life can be found in a good man. And maybe Paris. Preferably the two together.

I believe that one can indeed work on two or more tasks at once, but in ways yet to be understood.