When there is only one developer working on a project, it's tempting to forget about version control and just do the work, after all, it's not like a single developer is going to have a conflict with himself! But, there are good reasons to implement version control even for projects with a single developer, and many more when there are multiple developers involved.

The main reason for version control is to protect against the fact that we are human and can make mistakes. For example, we have to extend some existing code to allow for additional functionality. In the process of extending the code, we break the original function. It happens, even developers are human! Without version control, we would have to start all over again instead of simply rolling back to the previous version. When there are multiple developers involved, there are times when you'll add code that causes something to break in another part of the system; having version control means you can roll back and...