[texhax] Typesetting in landscape mode.

[Ludwig Mises]

I have a document that I would like to be entirely in landscape mode
(two columns).  Something like this:

_____________________
| text text | text text |
| text text | text text |
| text text | text text |
| text text | text text |
|__________|__________|

I sure hope this comes out right from gmail... I know postscript can
easily rotate, is there something similar in plain TeX?  It will be on
8.5x11in paper (letter).

I know I can use \vsize and \hsize to control the actual size of the
margins.  I suppose I could output two pages, and then rotate them on
a copy machine?  Maybe something like pstops could take the two pages
and somehow conjoin them rotated?

I saw the FAQs about landscape with LaTex:

http://www.tex.ac.uk/cgi-bin/texfaq2html-gamma?label=landscape

But it seemed more for a LaTeX usage.

Thanks for any suggestions.

Ludwig