A few extra facts today...it's getting close to D-day for me.
If you rent a car, remember that you must drive on the left side of the road. If you rent a Volkswagen Beetle, it's known as a "volksie" (pronounced 'fork-see'). If you take a cab, most taxis are white minibuses, and yes--taxi drivers drive like maniacs.
South Africa, like most of the rest of the world, uses the metric system; litres, metres, kilometres, kilograms and celsius (centigrade)
The drinking age is 18.
Haggling is not commonplace. Pay the fixed price.