For Gopher: make VIM automatically wrap at 67 characters...

in ~/.vimrc
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set textwidth=67

#############################

if you want to re-wrap existing text to this width...

<esc>
gg  (to go to the top of the file)
gqG (to re-wrap)


to help with other stuff:

#################################

set backspace=indent,eol,start
syntax on
set hidden

#################################