stepping through your window configurations

As a small addendum to the entry about keeping related buffers together (with Elscreen): there is also winner-mode, as was mentioned by ustunozgur. winner-mode is a bit simpler than Elscreen. It allows you to step through the various window configuration you had before - instead of having separate 'tabs' as in elscreen, you just step through your history.

I have the following in my .emacs:

(require 'winner)
(setq winner-dont-bind-my-keys t) ;; default bindings conflict with org-mode

(global-set-key (kbd "<C-s-left>") 'winner-undo)
(global-set-key (kbd "<C-s-right>") 'winner-redo)
(winner-mode t) ;; turn on the global minor mode

As you see, I am using the windows-key in the key bindings once more, but of course you can use something else as well.