autocmd BufNewFile,BufRead *.tex abbreviate framedo \begin{frame}<CR>\frametitle{TODO}<CR>\end{frame}<ESC>k>>wwlcw
autocmd BufNewFile,BufRead *.tex abbreviate itemdo \begin{itemize}<CR>\item <CR>\end{itemize}<ESC>k>>$a
autocmd BufNewFile,BufRead *.tex abbreviate cnter \begin{center}<CR>\end{center}<ESC>k$o