In my free time over the past couple of months, I've been taking the time to learn how to use the Pandas DataFrame in Python. It feels like a gateway drug. I've seen pieces of it cloned in other languages but missing critical parts like multi indexes, stack and unstack. After decades of writing awkwardly imperative data manipulation code, I'm seeing much better paths.
Never stop learning, folks, I'm continually amazed at how rich the software field is with ideas.