blowing smoke out a window works about as well as trying to blow smoke out a wall, shit just comes back at you, you may not realize it but thats what happens. I live with two people who smoke cigs and they just stand by the deck door and blow smoke out it but the whole entire kitchen area still smells like stale cigs.

my advice would be to get something smaller and more portable like a glass piece or a onie and just go out on your deck or in your front yard or something, if you think the smell is strong enough for your neighbor to smell or that a police dog is going to randomly smell your shit than your just retarded, the smell from your hit will last about 2-5 seconds with all that fresh air outside and if you see any lights come on in your house you can quickly put the piece in your pocket and make some stupid reason up as to why your outside.

Dont try and smoke inside, you're taking the chance of getting caught, plain and simple