The local currency is the Hong Kong dollar (HK$), which is divided into 100 cents. Bills are issued in denominations of HK$10, HK$20, HK$50, HK$100, HK$500 and HK$1000. There are little copper coins worth 10¢, 20¢ and 50¢, silver-coloured HK$1, HK$2 and HK$5 coins, and a nickel and bronze HK$10 coin.
Three local banks issue notes: HSBC (formerly the Hong Kong & Shanghai Bank), the Standard Chartered Bank and the Bank of China (all but the HK$10 bill).
Hotels A HK$10 or HK$20 note for the porter; gratuity for cleaning staff at your discretion.
Restaurants Most eateries, except very cheap places, impose a10–15% service charge, but it is normal to still tip a little (under 5%) if you're happy with the experience. At budget joints, just rounding it off to the nearest HK$10 is fine.
Pubs and cafes Not expected unless table service is provided, then something under 5% of your bill.
Taxis Tips are never expected.