What it is: An advent calendar with the best of Yves Saint Laurent including mini and full-size products from fragrance and beauty to skin care. How to use: Each day, unwrap a different box. For fragrance, apply one to two sprays on your wrist or the nape of your neck. For lipsticks, apply at the center of the lip and glide to the corners, then reverse the movement for maximum color impact. For mascara, apply from the base to the tips of your