ABC News online
Best -- and Worst -- Tippers in the World
...A new survey of 9,000 people in eight countries revealed that Germans -- not Americans -- were the best tippers of the nations surveyed. Americans came in second.
"Tipping is a cultural norm in the States, and U.S. travelers have a tendency to take their customs on the road whether they are on American soil or traveling abroad," said Brooke Ferencsik, director of communications at TripAdvisor.
It's not as commonplace in Europe, where the gratuity or service charge is often already included in the bill.
Only 16 percent of U.S. respondents said they always felt they were informed about how much to leave. Which may contribute to our reputation for overtipping outside the U.S....