Git is the undo button for people who ship fast

Imagine you're writing a long document and you hit undo 47 times to get back to where things were good. That's what building software feels like without Git. Git is a save-point system for your entire project. Every time you save a checkpoint, you can always rewind to that exact moment later. It doesn't matter if you accidentally delete something, mess up a layout, or try an experiment that goes sideways. One quick rewind and you're back to safety.

When you're building anything — a website, an app, even a document-heavy project — things break. Usually at the worst time. Without Git, you're stuck trying to manually remember what changed and undo it piece by piece. With Git, every meaningful change you've ever made is recorded. You can compare what's different, see exactly when something broke, and roll back to the last version that worked. It's like having a time machine for your project, and it works whether you're a team of one or a team of fifty.

You don't need to learn everything at once. Start with one habit: before you try anything risky, save a checkpoint. That's it. Think of it like quicksaving in a video game before a boss fight. If the boss kills you, you reload. Same idea here — save your working state, try the scary change, and if it goes wrong, reload.

The second habit: write a short note with each save that explains why you made the change, not just what you changed. Future-you will be grateful when you're scrolling back through your history trying to figure out what happened three weeks ago.

Always. Even if you're working alone. Even if your project is small. The moment your project is more than a single file, Git earns its keep. The five seconds it takes to save a checkpoint is nothing compared to the hour you'd spend trying to manually recover from a mistake.