Singapore is virtually cashless, use bank cards for everything including travel on the MRT (underground). You will need a card each. You don’t need any cash at all. Australia the same.
As an aside - Singapore were trying to introduce a cashless society in the early 1980s, but the rest of the world thought it would never catch on.
not a great one for gadgets but some I have bought
500000 trees to be. Planted throughout England


