Those tourists looking for visiting of local landmarks and sites should necessarily buy a city map. There are several types of city maps available for tourists. The most popular ones are considered to be the Go Card and CityPASS as these maps enable tourists to buy museum and art galleries entrance tickets with sufficient discounts.
The optimum way to pay for goods and services is national currency as any other currency may be denied in local shops and establishments. The currency should better be exchanged at home before a departure as in this case one will get the most profitable currency exchange rate. It should be noted that San Francisco lacks currency exchange offices which are rather challenging to find.
When on shopping tourists should not keep much cash by themselves as the city of San Francisco has adopted a system of cashless transfers. That is why the best way for payments is to get a multi-currency Visa credit card for a trip.
Utility supplied voltage varies from 110V to 127V. Some electrical appliances may need special connectors and adapters. In large hotels these items are provided at the request. Adapters and connectors can be bought in any specialized household store.
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