Yeah it's a good idea not smoke in your car unless it is absolutely necessary. Here is what i do if i have a few weeks before i need my car to be "smell free" i will just ride with the windows down, which is cool even in cold weather because I like to let people in on the jam, or if i am on my way home lets say i would just buy a California scents you know those little things in the tin can that make your car smell different really fast