There's so much fun stuff going on in this Chinese propaganda-themed bar that one dose of happiness just won't cut it. The attention to detail is sure to bring a smile, from the Chairman Mao decor to Chinese bar snacks (mmm, dumplings) and bubble tea cocktails, plus a regular Kung Fu cinema night. Double Happiness is small, cosy and relaxed and close enough to Chinatown for a late-night feed that's staying with the theme.