That tipping thing always comes into play. Again, ConsumerCredit.com offered an infographic. The rates listed are current as of May 4, 2016.
Nowadays, people talk about money. This wasn't what I was taught to do so, I still don't talk much about it. I was taught that it isn't anybody's business to know what my financial situation is and it's not my business to know how they handle their personal finances.
I don't like to think much about money. I know that it is easier to not think about money when I have it but, that is a rare occasion. Anyway, money etiquette is something that must be a topic since ConsumerCredit.com invested in creating an infographic about it. I think they are good enough ideas to share and I believe people are more successful when they don't discuss personal finances and choose to mind their own.