besides cars I smoke exclusively outside. Nothing beats waking up at 6:30 and going on my room smoking a joint to the sunrise
I live in the woods so its pretty as forget, we walk outside on the porch and listen to the birds while we smoke.
In my room I have a door that goes outside so I'll often open it on a pretty day. No worry about getting caught unless some starfish calls the cops, no one up here cares enough about pot to call them though.
Not to mention the only person who dislikes pot has more against him than I do.