1𝐷𝑎𝑦𝐴𝑓𝑡𝑒𝑟𝐴𝑛𝑜𝑡ℎ𝑒𝑟 (mark40511)

The beginner writes just twenty pieces. The professional writes three times what's needed, as many as sixty different bits, keeps trying them out on small groups (but never your own family), rewrites discards, rewrites some more, then finally settles on the twenty which work best for that specific audience.