Source:http://www.cleaningsearch.com.au/

How to clean Mirrors

Polish mirrors with talcum powder.
Remove hair spray from mirrors with methylated spirits.
Fogging up from steam may be prevented by rubbing the mirror with:
* a cloth dipped in glycerin; or
* a cloth dipped in equal parts glycerin and methylated spirits; or
* rubbing with soap then polishing with a clean cloth.
Disclaimer:
The User is warned that some of the ingredients and substances may be harmful and dangerous if improperly used or applied. While every effort has been made to ensure the quality of information on the site, Cleaningsearch.com does not make any representation regarding the suitability of the process for any purpose. The User is responsible to make their own assessment and test to verify the suitability of the information and the User accepts the risk of any use of the information.