I'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

I'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 >$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. Learned how to read requirements and put in fudge factors on budget estimates. Glad I'm not in that business anymore.