U.S. 3 Year Treasury Note-0.001 3.756% U.S. 5 Year Treasury Note-0.6880 3.8760% U.S. 7 Year Treasury Note-0.0070 4.0630% ...

Tipping is always a voluntary way to show appreciation - it doesn't matter if it's already on the bill. "If you don't appreciate the service, absolutely you tell the waiter: 'I'm sorry ...