You can get more done when you work with a proven system.
Proven systems enhance productivity in 2 major ways.
First, in most cases, the system has already been fine-tuned to eliminate any wasted effort, and the increased efficiency means more of your effort goes directly to producing the results you want.
Second, the more you use the same system to do a task, the less time you have to spend thinking about how to do it.
Less time spent figuring things out means more time actually doing it, and getting more things done in the time you have.
If there isn't a proven system already in place for the things you do, then creating one can be one of the most important things you do this year.