Somewhat off topic, but I remembered the author of this Excel add in's "Ask HN" when it first came out ( http://news.ycombinator.com/item?id=794317 http://news.

Somewhat off topic, but I remembered the author of this Excel add in's "Ask HN" when it first came out ( http://news.ycombinator.com/item?id=794317 http://news.ycombinator.com/item?id=794317 ). 2 or 3 years later, it looks like he's expanded and now has 2 software products and a SAAS ( http://www.OakFocus.net/ http://www.OakFocus.net/ ), so very inspiring.