I have always wanted to be efficient in whatever I do. I have tried so many methods, and have been doing some readings. From my observations, readings, trial and error, I finally make a conclusion. Focus. That's it. All I need to do is focus on one thing at a time.
One metaphor is kungfu. In this martial art, a seemingly impossible act, can be done smoothly, with little energy. What the kungfu fighter usually do is focus sharply on the object he wants to act upon, and then act upon it in a very fast manner. The result is always perfect for a professional kungfu fighter.
This applies too to whatever you want to accomplish. Let's take washing dishes for an example. When you wash the dishes focus only on the dish washing. Concentrate on the washing. Focusing is to put all energy, effort, and attention into one. In this case, the dish washing. Your eyes, hands, even your hearing should be focused on the dish washing. Enjoy it as you do it. If you really focused, you will be in a flow; 100% focused, zero distraction. And the end result is a sense of full contentment.
Do not multi-task. One thing at a time. Sounds slow, but in reality is faster. Enjoy your doing, take your time to accomplish the one thing your doing in that moment. Don't try to be perfect. Complete the one thing you are doing, and then quickly move to the next. Focus washing on one plate and then quickly move to the next plate. It is much efficient. Believe me! All you have to do is break your task into small steps. Concentrate on each steps, and move quickly from one to another.