Zimbabweans used to laugh at Zambia's currency, the kwacha, as Monopoly money. Nowadays, in Victoria Falls on their own side of the border, Zimbabweans are using kwacha as a hard currency, while the Zimbabwean dollar loses half its value every few days.
In August 2006, Zimbabwe's central bank issued a one cent note. In May this year, it issued a Z$50-billion note. At the time it was worth about $4 (R30); now it is just 33 US cents, and that won't be for long.
Meanwhile, an advert in Thursday's Harare Herald newspaper trumpeted that this week's Lotto bonanza is "Z$1,2-quadrillion" in prizes (about $4 100, and not for long either).