I've written a totally small-time presentation thingy that cues me thanks to Emacspeak. ;) Here's the setup code:

(progn ;; Setup
  (defvar democamp/presentation-file "~/democamp.el")
  (defvar democamp/cue-buffer "*DemoCamp*")
  (defun democamp/next ()
    (interactive)
    (let (start sexp)
      (with-current-buffer (find-file-noselect democamp/presentation-file)
        (setq start (point))
        (forward-sexp)
        (setq sexp (buffer-substring-no-properties start (point))))
      (eval (read sexp))))

  (defun democamp/previous ()
    (interactive)
    (let (start sexp)
      (with-current-buffer (find-file-noselect democamp/presentation-file)
        (setq start (point))
        (backward-sexp)
        (setq sexp (buffer-substring-no-properties (point) start)))
      (eval (read sexp))))

  (defun democamp/repeat ()
    (interactive)
    (let (start sexp)
      (with-current-buffer (find-file-noselect democamp/presentation-file)
        (setq start (point))
        (backward-sexp)
        (setq sexp (buffer-substring (point) start))
        (forward-sexp))
      (eval (read sexp))))

  (defun democamp/say (text)
    (with-current-buffer (get-buffer-create democamp/cue-buffer)
      (erase-buffer)
      (insert text)
      (goto-char (point-min))
      (call-interactively 'emacspeak-speak-buffer)))
  (global-set-key (kbd "") 'democamp/next)
  (global-set-key (kbd "S-") 'democamp/previous)
  (global-set-key (kbd "C-") 'democamp/repeat)
)

Random Emacs symbol: gnus-multiple-choice – Function: Ask user a multiple choice question.