Have you been really good this year? Like really good? Then you deserve YSL’s dreamy Advent Calendar, €219. There are 25 delightful doors, each hiding a luxury treasure. It really is excellent value when you break down what you get for the price – deluxe sample sizes of all the YSL favourites, from Touche Éclat to Volume Effet mascara and scents like Opium and Mon Paris. These are all both travel - and clutch-friendly in size. Many other cosmetic brands have Advent calendars with their best-selling items, offering a great bang for your buck, so keep an eye open.