For simple(ish) projects that don't need constant branching and that are restricted to a single machine, I still use CVS. But that may be because I've been using CVS since it first came out, so I have muscle memory.
Hell, to this day I still use rcs to record the history of assorted config files in /etc (and $HOME). For the simple cases, a simple, *light* *weight* SCM is all you need. Also, at least some makes still have built-in implicit rules to handle RCS sub-directories. --lyndon
