Do you open sales CSV files in Excel every month, filter them by month, and calculate the number of transactions and total ...

Python -O won’t magically make every script faster, but in the right workloads it’s a free win—here’s how to test it safely.

Though this script can be used for any folder, my Downloads folder was an absolute nightmare. There were tons of screenshots, invoices, installers, and random documents all piled up in one place.