This is one of the most important question that people miss out in the mad race of Business.
Being big has not been a source of Happiness and contended living for a large section of the population and so this needs to be pondered over and thought about in depth.
A simple sustainable model of living a purposeful and happy life can be derived from the various learning's that human kind is gifted with today.Thanks to Internet the whole worlds collective gained knowledge is within reach for more people on this planet than ever before.
I have created a practical simple guideline that works for me and would love to share validate and evolve it for more people to adopt.
Please request and I will share the link with edit rights to you to add and improve on the same.