Sending a thank you email after an interview is a polite business norm which also increases your chances of gaining employment. (coverlettersandresume.com)
It was the most extreme example of a big - business norm in the middle of the 20th century, one quite different from today's. (businessinsider.com)
And it might have been, but I think it's important to learn about and emulate business norms even in these more laid back entry level positions. (careerdigital.com)