Great question...to tip or not to tip...I agree with A L., all this tipping has gotten out of control. It's like fundraising!
So what is the rule? According to the Business Insider: Tipping dates back to 18th century England, when an urn would be placed in pubs with a simple sign that read, “To Insure Promptitude.” This was later shortened to the acronym T.I.P. or “tip,” as it is currently called. While originally a way of ensuring good service, tipping is now expected at most businesses where a personal service is performed.
Read more: http://www.businessinsider.com/infographic-how-much-you-s...
Many people "depend" on tips as part of their job. That is CRAZY! Why doesn't a employer just pay what the job is worth, why do the clients have to make up the difference? It is like with the school systems...if they were just funded appropriately, there would not be the need for so much fundraising. (sorry that was an aside)
So tipping...I ONLY tip when I am TRULY over joyed with the service or quality of the attention. When they "do their job" that does not get a tip, when they EXCEED expectations, a tip is given. Think what you will, but when I was a teacher, an administrative assistant, a book keeper and more...I NEVER received a tip for doing my job, it was after all MY JOB. Just sayin...