diff --git a/vimrcs/extended.vim b/vimrcs/extended.vim
index 255a31cfca..6110d79570 100644
--- a/vimrcs/extended.vim
+++ b/vimrcs/extended.vim
@@ -10,7 +10,8 @@
 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
 " Set font according to system
 if has("mac") || has("macunix")
-    set gfn=Source\ Code\ Pro:h15,Menlo:h15
+    " set gfn=Source\ Code\ Pro:h15,Menlo:h15
+    set gfn=Source\ Code\ Pro:h12,Menlo:h12
 elseif has("win16") || has("win32")
     set gfn=Source\ Code\ Pro:h12,Bitstream\ Vera\ Sans\ Mono:h11
 elseif has("linux")
@@ -19,11 +20,11 @@ elseif has("unix")
     set gfn=Monospace\ 11
 endif
 
-" Open MacVim in fullscreen mode
-if has("gui_macvim")
-    set fuoptions=maxvert,maxhorz
-    au GUIEnter * set fullscreen
-endif
+" " Open MacVim in fullscreen mode
+" if has("gui_macvim")
+"     set fuoptions=maxvert,maxhorz
+"     au GUIEnter * set fullscreen
+" endif
 
 " Disable scrollbars (real hackers don't use scrollbars for navigation!)
 set guioptions-=r
diff --git a/vimrcs/my_config.vim b/vimrcs/my_config.vim
new file mode 100644
index 0000000000..e19c1e53f1
--- /dev/null
+++ b/vimrcs/my_config.vim
@@ -0,0 +1,35 @@
+" always show line numbers
+set number
+
+" autmoatically load NERDTree with vim
+autocmd VimEnter * NERDTree
+" and put the cursor in editor window
+autocmd VimEnter * wincmd p
+
+" exit NERDTree when the only window is closed
+" https://github.com/scrooloose/nerdtree/issues/21
+function! NERDTreeQuit()
+    redir => buffersoutput
+    silent buffers
+    redir END
+
+    " 1BufNo 2Mods. 3File 4LineNo
+    let pattern = '^\s*\(\d\+\)\(.....\) "\(.*\)"\s\+line \(\d\+\)$'
+    let windowfound = 0
+
+    for bline in split(buffersoutput, "\n")
+        let m = matchlist(bline, pattern)
+
+        if (len(m) > 0)
+            if (m[2] =~ '..a..')
+                let windowfound = 1
+            endif
+        endif
+    endfor
+
+    if (!windowfound)
+        quitall
+    endif
+endfunction
+
+autocmd WinEnter * call NERDTreeQuit()