THE highlight of any year has to be the moment when the letter-opener slices through an envelope to reveal a Christmas card from those charming people at the Ocean Palace Restaurant & Night Club. The design never changes but the faces of the ageing cabaret singers booked for the Christmas season do. This year, Jenny Tseng and Ching Shan will be singing for our supper as we swill XO and pull crackers with mainland businessmen in cheap suits. Or will we? The very next postbag brought an extremely tempting 'card' from rivals The Ocean City Restaurant & Night Club Ltd. A marvel of design, it manages to incorporate pictures of entertainers Lisa Wang Ming-chuen and Adam Cheng Siu-chow, prices, detailed menus, a charming shot of the ballroom and even a strange little thing reading 'seasons greetings', whatever that means.