c) The times of Krusenstern and Columbus are long gone; there are almost no places on the Earth left undiscovered by sunglasses-clad tourists, carrying cameras with huge zoom lenses. However, there is one thing which remains true of trav- ellers throughout time they need money. But while the Con- quistadors travelled under the patronage of their kings, mod- ern young tourists must make do¹ by themselves and in this, they are aided by cards credit cards and discount cards.