What’s the best way to clean and organize a messy data set or dataset? or How do you handle missing v

For small stuff, Excel’s `TRIM` and `CLEAN` functions are my best friends.

For bigger jobs, Python’s Pandas is unbeatable. `fillna()` and `replace()` are clutch.

Organization-wise, I’m lazy—I just add a ton of comments in the script so I remember what I did.