I use a black light to see what I have missed from the "monkey " smells that is what I occasionally call my 9 yr old son, and he uses the bathroom as a place where he thinks he is putting out a fire.. I clean the toilets the floor , with vinegar and lemon juice then turn off the lights to see what I have missed, then wipe clean but this is a temporary solution because once he uses the bathroom again the boy smell returns just not as bad