Something that separates professional software developers from "cowboy hackers" are their understanding of the importance of sound engineering principles, and following best-practice methodology rather than cranking out unmaintainable code at the speed of light. An example is how they manage their source code throughout the lifetime of the project. There are excellent tools that help developers manage their code; and these tools are free!
Yet, some developers I meet still don't use such tools, and this amazes me all the time. I have heard many lame excuses as to why developers don't use the excellent and free code management tools that are available; and none of those reasons have impressed me a bit. To help embedded developers understand the value of using readily available and free tools for code management, we have written an extensive whitepaper on the subject. This blog post outlines the abstract and provides a link to the free whitepaper.