I have three fragrances right now, Ralph Lauren's Romance, which I've worn for years and years and is still probably my favorite, Eternity Moment, and my newest, Lola by Marc Jacobs.
Today I'm wearing Romance. I can usually smell it several hours later. But Lola, I can't. It seems to fade quickly one me. I love the initial scent though.
I usually put a little in the crook of my elbow, and maybe a little on my neck, but I tried not to overdo it. I worked with a woman years ago that you could smell several minutes after she'd walked by, and you could always find her when you needed her by following her scent! I've also been outside walking and been able to smell the perfume of people driving by in cars with the windows rolled up, or been in a room with someone and have been able to taste the perfume in the air as they pass. That's just too much!
I'm pretty chicken when it comes to scents because if I can't pronounce it, I don't want to own it, partially because I don't want to feel silly asking for it at a fragrance counter, and partially because I'd be scared someone might ask me what I'm wearing and I wouldn't be able to tell them without feeling silly!
(Years ago, my husband wore Joop and it was a long time before we realized how it was prounounced and we were embarrased!)
Honestly, I usually don't notice anyone else's scent unless it's unpleasant or overdone.