I've never picked up a cigarette habit, even after smoking many times. However, if I know I'll be somewhere for a few days and most likely be bored, I like to buy some Newports.
I went through a whole pack in January when I went to Miami

.
If you aren't at the beach, Miami can be extremely boring, especially for a New Yorker like myself.
Also I'm glad cigarettes are so expensive here in NY. Like $10+.
In Florida I got Newports for $5. Easier to get addicted.