portland – Simple portrait/landscape switching
The portland package provides portrait and landscape environments, that set page dimensions but don't provide any hints to output devices. Thus, while you can sometimes read the resulting text in a previewer, special measures have to be taken to print the output.
Maybe you are interested in the following packages as well.
- sober: Makes appearance of standard styles more "sober"
- cropmrks: Add crop marks to a Plain TeX document
- varindent: Make paragraph indentation match the length of the line above
- schedule209: Typeset schedules