1.   Currency can be exchanged at railway stations.

2.   Foreign currency can be exchanged for sterling at any bank.

3.   However, most banks will exchange currency at short notice.

4.   In short, the gold standard obligated the central bank to exchange currency for gold at a fixed price.

5.   To begin with, when nations trade there arises a need to exchange their currencies.

6.   Because currencies were no longer pegged to the fixed price of gold, it became harder to exchange one currency for another.

7.   --Cathay Pacific Airways has begun rolling out ATMs inside jetliners that allow users to exchange currency or buy cards for inflight entertainment.

8.   For when European banks exchange one currency for another, they rarely accept coins, only notes.

9.   Further, a country does not risk speculative attack because it has not promised to exchange its currency for a specified amount of dollars.

10.   In particular, foreign visitors have complained that they often have to exchange currency first to pay for the carts.