Comment by wishpal

- Linux/Terminal commands/Vim - IDE (VSCode/Sublime/Jupyter) - Network Debugging Tools including Browser Dev Tools (Chrome/Firefox) - PostMan - Prompt Engineering for quick development/learning new languages ( Finding AI Studio and ChatGPT both pretty useful currently)

Not sure about a lifetime :) - but 1/2/3 (some version of it) I have been using for more than 20+ years now.