Even with the exhaust fan running, my bathroom mirror will fog up. You could open a window, or leave the bathroom door open (subject the the presence/objections of house mates). Or, just wipe it dry with a hand towel when your shower is done.
I would like to safely secure a mirror to the drywall. The mirror itself is pretty light (probably under 5kg), the weight is not an issue. However, its back surface does not have any hooks or anyth...