I smoke and when I'm done, I flick the cherry off and the rest of the tobacco out. If I'm near the cart, I toss it in there until I get to a trash can. If I'm in the middle of the fairway, I just put the butt in my pocket until I get to the cart. I never leave them on the course, and, since I'm the one who smoked it, if I smell like smoke because a butt's been in my pocket, that's fine. I don't want to ruin the course for anyone else.