Completely agree on tests. It's much more enjoyable for me to write some automated tests (unit or integration) and be able to re-run them over and over again th

Completely agree on tests. It's much more enjoyable for me to write some automated tests (unit or integration) and be able to re-run them over and over again than it is for me to manually run some HTTP requests against the server or something. While more work up front, they stay consistent and I can feel more comfortable with my code when I release. It's also just more fun to write code (even a test) than it is to manually run some tests over and over again, at which point I eventually get lazy and skip it for that last "simple, inconsequential" commit. Coming from a place where we never wrote tests, I introduce way fewer bugs and feel way more confident every day, especially when I change code in an existing place. One trick is to not go overboard and to strike an 80/20 balance for tests.