diff --git a/.vimrc b/.vimrc
index 6fefbeb..f066a49 100644
--- a/.vimrc
+++ b/.vimrc
@@ -1,42 +1,46 @@
-syntax on		" enable syntax highlighting
-set cursorline		" highlight the current line
-" set background=dark	" darker color scheme
-" set ruler		" show line number in bar
-set nobackup		" don't create pointless backup files; Use VCS instead
-set autoread		" watch for file changes
-set number		" show line numbers
-set showcmd		" show selection metadata (like selected character count)
-set showmode		" show INSERT, VISUAL, etc. mode
-set showmatch		" show matching brackets
+syntax on		            " enable syntax highlighting
+set cursorline		      " highlight the current line
+" set background=dark	  " darker color scheme
+" set ruler		          " show line number in bar
+set nobackup		        " don't create pointless backup files; Use VCS instead
+set autoread		        " watch for file changes
+set number		          " show line numbers
+set showcmd		          " show selection metadata
+set showmode		        " show INSERT, VISUAL, etc. mode
+set showmatch	          " show matching brackets
 set autoindent smartindent	" auto/smart indent
-set smarttab		" better backspace and tab functionality
-set scrolloff=5		" show at least 5 lines above/below
-filetype on		" enable filetype detection
-filetype indent on	" enable filetype-specific indenting
-filetype plugin on	" enable filetype-specific plugins
-colorscheme cobalt	" requires cobalt.vim to be in ~/.vim/colors
+set smarttab		        " better backspace and tab functionality
+set scrolloff=5		      " show at least 5 lines above/below
+filetype on		          " enable filetype detection
+filetype indent on	    " enable filetype-specific indenting
+filetype plugin on	    " enable filetype-specific plugins
+colorscheme cobalt	    " requires cobalt.vim to be in ~/.vim/colors
+
+" column-width visual indication
+let &colorcolumn=join(range(81,999),",")
+highlight ColorColumn ctermbg=235 guibg=#001D2F
 
 " tabs and indenting
-set autoindent		" auto indenting
-set smartindent		" smart indenting
-set expandtab		" spaces instead of tabs
-set tabstop=2		" 2 spaces for tabs
-set shiftwidth=2	" 2 spaces for indentation
+set autoindent		      " auto indenting
+set smartindent		      " smart indenting
+set expandtab		        " spaces instead of tabs
+set tabstop=2		        " 2 spaces for tabs
+set shiftwidth=2	      " 2 spaces for indentation
 
 " bells
-set noerrorbells	" turn off audio bell
-set visualbell		" but leave on a visual bell
+set noerrorbells	      " turn off audio bell
+set visualbell		      " but leave on a visual bell
 
 " search
-set hlsearch		" highlighted search results
-set showmatch		" show matching bracket
+set hlsearch		        " highlighted search results
+set showmatch		        " show matching bracket
 
 " other
-set guioptions=aAace	" don't show scrollbar in MacVim
+set guioptions=aAace	  " don't show scrollbar in MacVim
 call pathogen#infect()	" use pathogen
 
 " clipboard
-set clipboard=unnamed " allow yy, etc. to interact with OS X clipboard
+set clipboard=unnamed   " allow yy, etc. to interact with OS X clipboard
 
 " shortcuts
 map <F2> :NERDTreeToggle<CR>