Open command shows a list of recent file

gistfile1.el

;----------------------------------------------------
;;;==== Open command shows a list of recent file ====
;----------------------------------------------------
(require 'recentf)
;; enable recent files mode.
(recentf-mode t)
; 200 files ought to be enough.
(setq recentf-max-saved-items 200) 

(defun ido-recentf-open ()
  "Use `ido-completing-read' to \\[find-file] a recent file"
 (interactive)
 (if (find-file (ido-completing-read "Find recent file: " 
				     (remove-if 
				      '(lambda (arg) (string-match ".tex\\|.txt" arg)) 
				      recentf-list)))
      (message "Opening file...")
    (message "Aborting")))

(global-set-key (kbd "C-x C-f") 'ido-recentf-open) ; I never directly open a file anyway, so bind the keys with recent documents