Well, guess what. I wouldn't be mentioning it if I wasn't activelly using the tools.

I do version-control all my source using CVS or Subversion.

I do version-control my Linux configuration files using CVS or Subversion.

I do use the tools for private code or private machines.

I do use the tools for shared machines or for multi-user coding projects.

I do use the annotate/history features to compare the current code with previous generations when I look for bugs.

I do use the annotate/history fatures to compare my code with source changes made by other developers.

I do use the annotate/history features to compare configuration file updates introduced by me with configuration file updates introduced by updating of program tools.

I did take "personal experience" as meaning how we are using the tools in a general way and not as in the explicit command-line or GUI menu commands we are issuing.

So please be a bit more explicit about what you mean with "personal experience", and in what way my answer is an example of what you do not want.