genuinegirly, Coco by Chanel is one of the all-time perfume classics, and you should have no problem finding it easily for the next 50 years anywhere.
I can't wear many perfumes, they make me sneeze, but I do have a short list. I tend to prefer oils, too:
Chanel #5
Ginger by Origins (great light springtime scent)
Lovespell by VS (my current fav, tons of compliments)
Gardenia oil (a blend, not just straight-up gardenia) by Glow (fantastic stuff)
Lilac oil (not a blend) from Bodyworks
Karma by Lush
Plus I got a bunch of perfume essenses from Egypt, inc. Egyptian lilac (very different from Western lilac), attar of roses, and a secret mix.
I tend to like scents that make me think of...water. Like, carnations or gardenias...tings that have so much water in them that's what you smell. Maybe I should look into this Cool Water one, eh? I love White Shoulders, but it turns into 2-week-old funeral arrangement on me, sadly.
Edited to add:
In researching White Shoulders, I came across this link explaining why the older perfumes don't smell as good today. It boils down to cheaper ingredients. Too bad.
http://www.cranemoon.com/history_of_perfumery.htm