Reusability of codes

So I am working on my first project in analyzing a dataset using pandas dataframe and wrote a bunch of codes to carry this out. However, it was only after writing it up that I realized how project specific my codes were. After this realization, I refined my codes and organized them as more generic functions so that it could be used across multiple projects of the same caliber.

This seems almost silly and trivial for me now, however a great lesson learned. "Work smart! Not hard!"