Or put a switch guard [1] on one of the two switches.  I've done this in three spots in my house.  The guard goes over the switch which is less used.<p>[1] <a href="http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?jspStoreDir=hdus&#38;catalogId=10053&#38;productId=100628705&#38;keyword=100628705&#38;langId=-1" rel="nofollow">http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDi...</a>