Here are some "How-To" guides created at other institutions:
Boston College - http://libguides.bc.edu/gettingstarted
Butler University - http://libguides.butler.edu/getting_started
College Center for Library Automation - http://libguides.hccfl.edu/content.php?pid=13011
Central Michigan University - http://libguides.ocls.cmich.edu/content.php?pid=14072
MIT - https://wikis.mit.edu/confluence/display/LIBGUIDESTF/Guidelines
Seneca Libraries - http://senecalibrariessubjectguidecommittee.pbworks.com/LibGuides-Manual-and-Guidelines