Burning questions: How much should I tip?
Photo credit: iStock | $ 5 dollar tip on the table with receipt, on a tray ,at a restaurant.
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What's the average restaurant tip?
There are no official figures, but Michael Lynn, a Cornell professor who has researched and published widely on tipping, said his "best guess was around 18 percent." And that figure has been slowly rising.
In general, Lynn said, "tipping guides provide a rough estimation of what people actually do." Etiquette books in the 1940s and '50s suggested that...
