Here's an interesting article in the NY Times about turning your hobby into a money-making venture. Click link here.
I can identify with some of the artists who were quoted. I agree the thing about working from home is that there is no "off time", no specific time to "clock out". The work very easily bleeds into every aspect of your life.
The photo is a "Blast from the past", the "Mosaic Throw" from Crochet Today Mar/April 2008.