[thallukrish]

It is a game of survival. You have to try several tricks to keep yourself afloat until you reach what you call as success. Being lean (in my case I am a single founder), fit physically and mentally (I did not do this so aggressively when I was employed:-), keeping track of your expenses (some sort of cash flow), going for little money once in a while in a consulting mode, having sufficient capital to not disturb your family all and more are needed till you think you have reached the point where you have exhausted all options - research, market, positioning, customer demos , partnering and so on.