I use Emacs for writing, not for coding. Is there an easy way, in Emacs or Emacs org-mode, to define a text string as a variable so that I can use it repeatedly?
Example: I created a template
invoice.org. It would be cool to put a variable like
$CLIENTNAME in the headers, in the table, on the cover page, in
#+TITLE:, and in the thank you, use that as a template, and then quickly generate a new PDF for each new client by just adding a line at the beginning like
let $CLIENTNAME="Jane Doe".
How do I do this?