Tipping tips every seasoned traveler must know!

Tipping is an accepted norm when you dine at an upscale restaurant or stay in a high-end hotel. But, when the bill is handed over, even the most experienced traveler is perplexed as to the amount he should leave as tips as the norms vary from place to place.
Why should you tip?
The idea behind tipping is to show your pleasure if the service provided meets or exceeds your expectations. However, your interpretation of the same service and the amount of tips can be different from others. Tip too much or too little, either way, it can be offending. So, how do you tip just right? Should you tip even if you were unhappy with the service? Forbes listed out a few tips about tipping.
United States: If you are eating out here, 15%-20% of your bill is the acceptable norm. 15% is what you should be tipping to your cab-driver. $3-$5 should be paid to the hotel concierge for services like arranging transportation while $1/bag will do to please hotel porters.
Europe: Most meals include service charges in the bill, but if you are pleased with the service, you may add 5%-10%. Hotel porters should be paid 10% and $2/bag for the hotel concierge. Your cab driver should be given 10%.
Asia: Beware; it’s considered an insult to tip the Japanese for anything! While in China, 3% is the norm in restaurants, 10%-15% should do in Hong Kong. You don’t have to tip your cab driver in China and $1 would do the trick in Hong Kong. Hotel porters get $2/bag as usual and the hotel concierge $3-$5, depending on the service you want.
India: You have reasons to smile if you are traveling to India as you’ll end up saving your dollars. You don’t have to tip your cab-driver and tipping is not expected in terms of percentage of the bill unless you are in a high-end hotel. A couple of dollars is enough to please the guys. Pay the hotel porter $1/bag and $2 to the hotel concierge for the simple services you avail.
Africa: Tips are factored in the bill you get while dining, if not pay 10%. The same applies to taxis. Pay hotel porters $1/bag and $2 to the hotel concierge for simple tasks.
Australia/New Zealand: If service charges are not included in the bill, 10%-15% is the acceptable norm. Round up the dollar amount when you have to pay the taxis. Pay $2/bag to the hotel porters and $2-$50 to the hotel concierge depending on the task.
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Tags: Tipping Guide, Dining, Travel