<human>: What is the best way to keep my car's interior from smelling like cigarette smoke?
<bot>: The best way to keep your car's interior from smelling like cigarette smoke is to not smoke in your car. If you do smoke, try using a window-mounted ashtray or an air freshener to help mask any lingering smells. Additionally, consider investing in a car cover that filters out odors, which can help reduce the chances of cigarette smoke permeating into the cabin.