What I do, is at 10 at night when everyone is going to sleep, I open the window, put a towel under the crack in my door, turn the fan on, play some music softly or put in a movie, hit the bong and either blow the smoke into a dube toob, or if I don't feel like going through the trouble to make one just blow the smoke into a pillow :P Then just spray a bit of febreeze and sit in my room for about 15-20 minutes until I'm sure my room is clear :thumbsup:
I don't have to worry about my parents coming in, because they'll only see me w/o a shirt on playin guitar or watching a movie, because I'm super slick like that and all...
During the day if someone leaves the house for even 15 minutes, smoke a bowl in the garage, open the garage door to let it air out real quick, then shut it :thumbsup: