A Data Science Short Cut Hack or Trick That You Found?

i'm super excided to be here. Hopele guys are as well. What's your favorite data science short cut hack or trick that you found? I just magical that once you learned it, your like, oh, my god, this is amazing. The start was serge, then we'l go to a ken and a and vin after that. By the way, everybody tuning in on linkdin and on youtube. Let me know if you got a question.