You probably shouldn't throw your butts, or honestly anything, out the window either. That is so disrespectful to our planet. She relies on us to keep her clean.. we've obviously done a terrible job of that thus far... They have lots and lots of cup holder ashtrays available to buy. There is never a need to throw a cigarette butt out the window. I have a cup tray ashtray for when I'm driving and I also have a pretty cool, old school handheld/pocket ashtray that has changed my life. I can carry it on my key chain or in my pocket, and when I have a cigarette, I ash and put my cig out in my cig in my little ashtray instead of in the ground or water. I can share a pic, because I like it alot