It's funny how most of the responses are from ex-smokers or nonsmokers. I'm a current die-hard smoker, and I definitely do adjust my travel plans according to the currently increasing nonsmoking regulations in airports and hotels.

I lament the loss of bars and restaurants that used to allow smoking past security and close to gates. I would stay there until the absolute last minute to board. Now, if wait-time and short security lines allow, or if there is a serious delay in the flight, I will sometimes exit security for a last-minute smoke outside before boarding begins.

I remember when Air France first banned smoking on international flights to/from the United States. At first, they actually provided packets of Nicorette sublingual tablets (not available still till this day in the USA) to their smoking passengers, and they were very effective. I'm not sure whether they still do this.

On my current long-haul international flights, I do use Commit lozenges and Nicorette gum as last resorts when the smoking urge becomes uncomfortable (usually about 4-6 hours into a flight). Even with nicotine replacement aids, I am anxious to deplane and get that first cigarette lit outside, even before going to baggage claim.

On domestic flights, on flights longer than 4 hours, I definitely choose stop-overs in airports that either have easy access to the outdoors without a security hassle to return, or provide smoking lounges (like ATL and Denver). Whenever possible, I avoid airports that have ridiculously restrictive nonsmoking regulations; for example, I no longer fly to Tahiti via HNL, which now bans smoking even in its spacious and empty outdoor areas with trade winds blowing through, where my second-hand smoke would annoy no one.

I no longer stay in Marriotts or any other hotel with a 100% nonsmoking policy. In some locations (e.g., HNL), this often makes it difficult to find an available room.

I like to think that I am a considerate smoker. I do not smoke close to other people unless they are smokers, even in outdoor areas; I always find a "designated smoking area" before lighting up; and I carry a small portable ashtray with a lid and do not litter with my butts. I wouldn't DREAM of lighting up in an airline lavatory!

I hope this helps the OP with information. It's been my experience in most forums that the "smoking" topic brings out a lot of judgmental opinion from nonsmokers. I don't need a lecture -- I know I have a habit that is becoming more and more socially unacceptable -- but I am among the approximate 15-20% of the traveling public that still smokes; and smoking is still a legal activity, and a personal choice.