I have an acoustic guitar with a cedar top that I bought from a luthier friend 16 years ago just before I took it to Southern Spain where I bummed around for a bit (and had quite a nice time). The smell of that ceder was very strong back then and the association with that Spanish trip became cemented in my mind. Even now when I take a good whiff of it, although it's not as strong as it was I'm still taken back to a Spanish beach at night smoking hash and watching lightening storms over toward Morocco, as if it were yesterday. 
 
I gave up smoking tobacco in 1994 at the age of 21 and yeah it really hits you how disgusting the smell is. I see girls on the street smoking and I think wow, after all the effort you went to with the clothes and the makeup and the designer bag, and here you are doing something which makes you smell like a Port Authority bum. 
 
Sometimes when I get a whiff of cigarette smoke now I'm taken back to my first few smokes at the age of 14, which coincided with my first experiments with alcohol. That feeling of sitting with a can of beer and a cigarette, neither of which you particularly liked the taste of, but it made you feel so grown up and therefore awesome. LOL!

jamesg1213
Never smoked in my life. Decorated a customer's hallway while she was out of town last week, big smoker. Horrible brown stains around the pictures and mirrors when I took them down. Had the door and windows open all the time, still had a pounding headache after each day.

That's me as well.  I've had gf's (or future gf's) that have quit for me and one passed a smoker in a restaurant about four months after she quit and exclaimed "Yuck!" did "I" smell like that when I smoked too???  (Naturally I just smiled and didn't say anything, but, DUH!)
 
Scent is actually one of the best triggers or latent memories. 

jamesg1213
Never smoked in my life. Decorated a customer's hallway while she was out of town last week, big smoker. Horrible brown stains around the pictures and mirrors when I took them down. Had the door and windows open all the time, still had a pounding headache after each day.

I once went to see a new customer at her house on the way home from work one day and as she opened the door it was like watching an episode of Stars in their Eyes....."tonight Matthew I'm going to be an old lady with nicotine stained hair"..........
 
Mrs Paulo took some convincing that I hadn't been down the pub.
 
 

Rain
I'm not too sensitive to actual smoke. My wife still smokes (though not in the house) and I don't mind. So do a lot of our friends. Whenever we go out, I often end up sitting at a table with a bunch of smokers (because, Las Vegas, you know...) and it doesn't bother me at all.
 
 

Even though I'd long since given up, I was actually quite disappointed how people her just rolled over and accepted the smoking ban in bars here. There was one that I knew of that basically kept the door locked and only let you in if your face fit or you were with someone whose face fit as they were defying the ban, but didn't want it known too widely, but other than that it was all a bit disappointing really. It should be down to the individual premises IMO. If you don't like it the way it is, then go somewhere else. There used to be plenty of others. Ironically the thing that was supposed to make bars more popular/pleasant has resulted in a good many closing due to lack of trade. If I'm ever  out with a friend who smokes I often go outside with them as it doesn't bother me either and I could go as far as to say that in the right mood ( ie several beers in ) I quite like it.

From my long list of things I don't miss about being in bar band:
Opening the lids on my synth rack back at home after a weekend of working in bars. That stale smoke smell oozing out of the rack into my studio always made me sick to my stomach.