The strangeness called `sbin'

[perryh at pluto.rain.com]

Patrick Lamaiziere <patfbsd at davenulle.org> wrote:

> I would like to keep /usr/local for ports only.
> When things are going wrong with ports it is sometimes
> easier to rm -rf /usr/local and rebuild all from scratch.

When using this approach -- which I agree makes sense --
where should one put truly local (non-ports) executables
(/usr/local/bin and /usr/local/sbin being reserved for
ports executables)?