I&#x27;ve learned much more from my failures than my successes.  Painful leaning but learning none-the-less.  Once bid a SW development project at about $500,000 USD.  Should have been more like $1,000,000.  Negotiated with client to split the difference. My company did not make a profit that year but the client got version one of a system that went on to save them &gt;$25,000,000 a year one year later and we got a long term client. I think we did 5 versions of that system for them.<p>Learned how to read requirements and put in fudge factors on budget estimates.<p>Glad I&#x27;m not in that business anymore.