This is a rewrite of an earlier talk about source control. What is source control? And why use it? In order to track changes of your code you use source control. In the simplest setup, source control answers what your source code looked like before you accidentally broke but it looked like it was working. In a similar sense you might want to store data about your customers in order to find it again. Who had a sale with customer A? Why use Sourcesafe (or CVS)? If you are a single dev. Why not? Technic[...]