Ive been a long time user of Emacs both on UNIX/Linux and on Windows, and Im reasonably proficient now I suppose - I have a small set of keyboard short cuts that I use regularly for things like switching between buffers and doing query-replace operations - but Im aware that Ive only scratched the surface of what the program is capable of (after all, I still think its "just" an editor). So my most recent discovery is probably not news to a lot of people, but I still think its pretty neat: specifically, the ability to access CVS version control operations on a file directly from within Emacs using its standard version control interface, vc.el. A quick summary of the basics: to load vc.el and activate the functions, first do Ctrl-x Ctrl-q , then: Use the sequence Ctrl-x v = to see differences between the current buffer and the last CVS version (i.e. cvs diff), and Use the sequence Ctrl-x v v to commit your changes - this opens a new buffer to write the commit message, and when...