I knew early on, what I liked and wanted to do later in life so I focused on it for years and years, so there are exceptional benefits to that approach. I can make a living and pursue hobbies with incredible efficiency. It gives me the freedom to take new approaches and invest time that I save on other ends.
So my major advice on being efficient is to really know your stuff to a nano-degree. This will give you the possibility to engineer everything to it's maximum potential and take it to the automated high ground.