Formal source control is always a good idea, even if you are working on a project yourself. A three person shop will have some overlapping development of resour

Formal source control is always a good idea, even if you are working on a project yourself. A three person shop will have some overlapping development of resources. So being able to undo changes and resolve conflicts will be necessary. As the team grows putting in other policies on checkin comments and ensuring not to break the build will become necessary. Lots of people are using github.com, I have been using unfuddle.com and it has worked out well. I also make sure I install a SVN server on everyone of my development machines as soon as I get it. Takes minutes to do and will keep my projects and files save.