what is your signature perfume?

Issey Miyake L'eau d'Issey year-round with a shift toward Calvin Klein Euphoria in the fall/winter; however, I've been testing the Florale version of Issey Miyake and Giorgio Armani Acqua di Gioia just to have more options and my boyfriend just gifted me a bottle of Tom Ford Black Orchid.
 
Dolce & Gabbana The one, Chanel mademoiselle, Thierry Mugler Alien...
but I loved much more perfum ;)

In summer I prefer:

Guerlain - Aqua Allegoria Eau de Toilette Spray Mandarine Basilic
DKNY - women
Chloé - L´Eau Chloé

Love the spring of summer fragrance
 
Narciso Rodriguez For Her. I was randomly handed a sample in Saks in Chicago a few years ago, and kept taking it out of my purse to smell for the rest of the day. After that I went back to buy it, and it's been my favorite ever since.