How much clothing do we really need for school or work?

We don’t want to be Einsteins over here, but we are discussing paring down the level of apparel that is cramming our drawers and closets…and saving money in the process, since times are tighter and tighter…so the question is how much do we really need? Which pieces and which amounts? For example, would a school age child need five pairs of pants, 8 shirts, three sets of dress clothes? Would you as a business man need five suits? Give me your ideas, please…