This is the line in my .init file:

    (org-babel-load-file "/path/to/config/emacsconfig.org")

Here's a snippet of the org file:

    * Behavior
    ** Make Unique Buffer Names
    
    When two files of the same names are open, make the buffer names nicer.
    
    #+BEGIN_SRC emacs-lisp
      (require 'uniquify)
      (setq uniquify-buffer-name-style 'reverse)
      (setq uniquify-separator "/")
      (setq uniquify-after-kill-buffer-p t)
      (setq uniquify-ignore-buffers-re "^\\*")
    #+END_SRC
    
    
    ** Prevent Shell Prompt from going to the bottom of buffer
    #+BEGIN_SRC emacs-lisp
      ;; Prevent shell prompt from always going to the bottom of the window!
      (remove-hook 'comint-output-filter-functions
                   'comint-postoutput-scroll-to-bottom)
    #+END_SRC

If you think entering #+BEGIN_SRC emacs-lisp is tedious, put the following in your config:

    *** Emacs Template for Source Code Blocks
    
    I just type <se at the beginning of a line and it gives a source block
    of Emacs lisp
    
    #+BEGIN_SRC emacs-lisp
    ;; Make a template for emacs lisp.
    (setq org-structure-template-alist 
          (cons '("se" "#+BEGIN_SRC emacs-lisp \n?\n#+END_SRC\n" "<src
      lang=\"emacs-lisp\">\n?\n</src>") 
         org-structure-template-alist))
    #+END_SRC

As the comment describes, now in any org file, at the beginning of a line, type "<se" and hit TAB, and it will expand it for you.