diff --git a/custom.el b/custom.el
index e9e1a68..42db3a8 100644
--- a/custom.el
+++ b/custom.el
@@ -17,12 +17,13 @@
   (set-mark (point))
   (move-end-of-line nil))
 
-;; Toggle between indenting with tabs or spaces.
 (defun fez/toggle-indent ()
+  "Toggle between indenting with tabs or spaces."
   (interactive)
   (setq-default indent-tabs-mode (not indent-tabs-mode)))
 
 (defun fez/current-line-empty-p ()
+  "Checks if the current line is empty or not."
   (save-excursion
     (beginning-of-line)
     (looking-at-p "[[:space:]]*$")))
@@ -45,15 +46,22 @@
   (transient-mark-mode))
 
 (defun fez/insert-keybind ()
+  "Prompts the user for a key combination like C-h k does, then inserts that key combination."
   (interactive)
   (insert (concat "(kbd \""
                   (key-description (read-key-sequence-vector "Key sequence: "))
                   "\")")))
 
 (defun fez/time-stamp ()
+  "Insert the current date."
   (interactive)
   (shell-command "LANG=nb_NO.UTF-8 date +%d-%m-%Y" t))
 
+(defun fez/kill-all-buffers ()
+  "Kill all buffers other than the currently active one."
+  (interactive)
+  (mapc #'kill-buffer (delete (current-buffer) (buffer-list))))
+
 ;; Eshell convinience commands.
 (defalias 'open 'find-file-other-window)
 (defalias 'clean 'eshell/clear-scrollback)
diff --git a/packages.el b/packages.el
index bc9895f..6e8f3d8 100644
--- a/packages.el
+++ b/packages.el
@@ -88,7 +88,8 @@
 (use-package multiple-cursors
   :ensure t
   :config
-  (global-set-key (kbd "C->") 'mc/mark-next-like-this))
+  (global-set-key (kbd "C->") 'mc/mark-next-like-this)
+  (setq mc/always-run-for-all t))
 
 ;; Jump to definitions and files with M-.
 (use-package dumb-jump
@@ -127,6 +128,7 @@
 (use-package elpher
   :ensure t)
 
+;; org-mode
 (use-package org
   :ensure t
   :config