Whats a Data Science life hack you discoverd that helps how you work ?

Hello, I hope everyone is doing great.
My question for you people is, what's something you have been doing for a while or discovered recently which is related to Data Science that ultimately helped how you work?
It can be a specific book, podcast, YouTube channel, or some techniques like RandomizedCV on sklearn etc, etc. There are no right or wrong answers, just share your journey.

Thanks

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