1. Up-to-date knowledge about one's own field of work /profession
Whichever programming or management areas you may be working in, you have to acquire new sets of skills and update knowledge of your own field to develop your efficiency. If you donot do so, you will not be able to take right decisions in your area of work and you would lag behind others. You will not be able to produce desired results in targetted timeframe. Hence your professional area of working must be fully known to you. Keep on updating your knowledge in your field. Invest time and money to acquire whatever is must to facilitate your adding more knowledge.

2. Consistent focus or Concentration:
Consistent focus and mental concentration is the basic foundation of the development of efficiency of any individual. The more it is developed, the better is your efficiency. The more you focus, the deeper you understand the subject matter. Your consistent focus can bring about a magic of energy and effieciency from within you. Experience it. Because with this we can understand the process of a task more easily and faster, we can work on it to complete it with ease and high proficiency, within desired timeframe.

When you start working on a task, leave behind all the worries, fear, any kind of burden on your mind and just focus on the task. You are sure to gain more...

It is said: "If a heart loses, one loses and if the heart wins, victory is guatanteed."
It simply means if a person has low morale, if mind is filled with mental difficulties etc., then it is for sure that he or she will not be able to complete the task properly or s/he will leave it mid way.
We therefore, must ensure that whatever task we are going to do, we put all our mental power, efficiency and knowledge in it to complete it with high proficiency.

From the professional point of view, we should keep learing tools and techniques of the trade, keep practising more and more, and produce good results. Practice plays a vital role in boosting efficiency.