Make large ashtrays available. Ashtrays with cigarette holders in the center are safer because if left unattended the cigarette will fall into the tray.
Cigarette butts should not be emptied directly into the trash can; cigarettes can smolder for several hours and then burst into flames. It is better to empty the ashtray into the toilet or let it sit overnight.
After parties where smoking has been permitted, check all furniture and trash cans to ensure that cigarettes were discarded properly.
It's risky to smoke when you've been drinking or when you're drowsy.