RE: Persistence of variables

[Drew Adams]

> > But no, way too heavy.  I want _one variable_ to persist, and nothing
> > more.
> 
> If you already use savehist-mode, you can add your variable to
> savehist-additional-variables.

There are several possibilities, including these:

1. `savehist.el' (what Eric said)
2. Customize (option value)
3. Bookmark (e.g., Bookmark+ variable-list bookmark)
4. Desktop

If you only want to save one variable, just use an option.