If some one in your household is doing haram and is not listening to you do this for 21 days.
Every day before azan of Fajr Salah read
Darood/Salavat 11 times
Surah lahab 19 times.
Darood/Salavat 11 times
and then do a dam(blow) on him while he/she is sleeping.
If the person is not in your house, imagine his face and do a dam(blow) on his face. You may keep a foto in front of you for imagination.