Arnold Kling offers some life advice based on broader application of the law of diminishing returns.
My tip is to pay attention to the law of diminishing returns. For example, the number of authors who write two books that are worth reading is at least two orders of magnitude less than the number who write one book worth reading. Most of the time, you should assume that if you've read one book by a given author then you do not need to read another. Too many people follow the opposite strategy--reading more books by authors they like.
Staying in the same organization for more than few years also puts you on the wrong side of the point of diminishing returns. Working in an organization is a learning experience. But, as with going to college, there comes a time when you need to stop taking their courses and proceed to graduate.