South African SIM card
European SIM card
USA SIM card
Take a card from your Hotel in case you get lost.
If you are unfamiliar with a city or perhaps you are a first time traveller the travel tip is to take a hotel business card from Reception when checking in, which has the address and telephone number of your hotel so in the event you should get lost or forget the name of hotel you are able to get back without too much trouble.
This tip is particularly useful in countries where English is not that widely spoken and communication is often difficult with a cab driver like in places like Korea or Japan. Just show the hotel card to the cab driver, the card will inevitably have the hotel address printed in English and the local language.
If there are no hotel business cards record the address as a pin on Google Maps and save the hotels telephone number.