Let me know what your best habits, tricks, info sources, etc.... that you have which make you a better developer. And the top three are going to get a copy of "The Pragmatic Programmer" in order to make themselves a better developer.

While unit testing is generally considered a good practice ( even among those who don't do unit tests), mocking doesn't seem to carry the same aura. There are a lot of arguments saying why mocking is bad , how it kills testability etc. But in my day-to-day job, as well as in my personal projects...