I just buy a cologne or perfume whenever I happen to run across something I like. I've bought about 4 in my lifetime. The first was a cyan perfume called "Stormy Heart" with glitter in it from Hot Topic. The latest was Aqua Invictus by Paco Rabanne.

I don't really think of them in terms of "subtle" or "noticeable", just good smelling or not. I guess I figure it's entirely how much you put on that makes you more subtle or noticeable. I put one or two sprays of Aqua Invictus on, and it's really strong. Not that I feel the need to smell strongly, but I want to make sure it lasts. I also want it to drown out the dirty smells of the house I live in. =P