The world's most (and least) expensive cities

Every year, Mercer Consulting compares the cost of items such as housing, food, transportation and the like in over 140 cities worldwide and issues a list of the most expensive (and least expensive) cities in the world. Usually, Tokyo is at the top of the list, which is no surprise to anybody who's ever been there (my credit card is still smouldering from the dinner my brother and I had at that