2006 is ending, and it is already time to begin thinking about New Year's Eve festivities. These events cannot be improvised! For example, one must take care to order in advance a full assortment of cakes and petits-fours.
Remarks about the translation
Petits-fours are also referred to as such in English. Also, the sense of the the last sentence seemed to imply the use of the phrase "one must take care to order". In colloquial English, "one must" would probably be rendered in the second person as "you must".