I love going into Sephora and browsing around, but I'm trying to cut back on cosmetics purchases (I've got way too much already) so I tend to just go in and browse.
Did you all know about Sephora's perfume samples? They will allow you 3 samples a day.

Just ask for which fragrances you want and they'll take the bottles and fill up tiny little atomizers for you. They're perfect purse-size perfumes! I always have one or two in my bag. And the benefit is you get to try out the fragrance for a few days before deciding if you like it - let it mix with your chemistry, see how much your man likes it on you...