I quite a couple of years back, but I used to let my nicotine addiction drive some travel choices -

I would often choose connections via smoker-friendly airports rather than non-stops. So, for example connect through NRT when going to/from asia. Domestically I would choose smoker-friendly airports to connect through; some airports have easy access to get outside even where no smoking is allowed indoors, whereas others make it very difficult.

I would chew nicotine gum on long flights.

I would hang around outside security until the last possible moment - availability of elite security lanes thus becomeing an important factor.

I continue to boycott all Marriott group hotels for their chain-wide ban on smoking rooms. I always regarded mysleft as a considerate smoker, and would never smoke in a non-smoking room. I recognize that in some hotels there is no way to provide smoking rooms that don't severely impact non smokers - but in many cases this is perfectly practical, and Marriott's decision to treat the 10-20% of their customers who smoke in such a contemptuous manner really annoyed me - and continues to do so even though it doesn't affect me any more.