Tipping a taxi, town car or Uber driver is pretty standard in most parts of the world, although how much varies widely. If you charter a yacht, you are expected to tip the crew, something that can run over $10,000 depending on the price of your rental. You likely tip the valet at a restaurant as you do the waiters and waitresses. In some places, if you leave a negligible tip, they might follow you to find out what you were unhappy about.

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