I've seen people smoke cigarettes within 5-10 minutes just to light another
Honestly, I'll light up a cigarette and want to start a new one a quarter way through. The best part of smoking a cigarette isn't the last half, it's the first quarter. I kind of wish that there were half-length cigarettes that wouldn't look stupid, 'cause those would be ideal. Currently I get 3/4 of the way through and don't even want the rest.
On days that I smoke I probably smoke around three cigarettes, but I only smoke maybe once or twice a week. That's been the way I've been for two years, excluding some periods last year where I'd smoke 3-5 cigs every day. Never 'tried' to quit before, they've just never really caused any gnarly cravings. Usually the act of going out to buy cigarettes is too much work to satisfy what little cravings I get.