I’ve found this article by Shawn McCool and I think it’s good for every developer, if you’re an expert probably you will know everything, if you’re a beginner you will be a better developer by following these advices as new year resolutions for 2014:
1. Learn from advanced engineers.
2. Learn technologies that are specifically different from those that you already know.
3. Join a community by attending user group meetups and IRC.
4. Take an interest in design patterns and agile development.
5. Don’t create ignorant self-serving opinions.
6. Rely on your own intelligence.
7. Learn How to Get Help
8. Never call anything technical “magic”.
Read the complete article here.