📌 Quick Info Topic: A beginner project that saves data to a file Target Audience: Beginners who know the basics and want a real project Goal: Build a working to-do list that remembers tasks after you close it 1. Introduction "My first two projects didn't save anything. Close the program, everything gone. Then I learned how to save data to a file — and suddenly my programs could remember." 2. What We're Building A simple CLI to-do lis...