Tipping is a controversial subject. It seems everywhere we go we encounter tip jars and are presented the opportunity to add a tip to services that seem routine. But from the other side, service ...

But is it better to pay the tip in cash or add it to your credit card receipt? Lisa Mirza Grotts, an etiquette expert of 23 years, said, “When in doubt, cash it out. It’s direct and prompt. This way ...

So often it feels particularly egregious when they’re asked to tip on top of that — sometimes 20% or more — at seemingly random places like the grocery store or fast-food counter.