Lukas Jannick, born and raised in the Netherlands, moved to NYC in May.

Sydney Krantz for BI

When Lukas Jannick's parents heard how much he was spending on coffee in New York City, they bought and sent a coffee machine straight to his house."I told them it's $5.69, and they were shocked," he said. "Now I'm not spending any money on coffee."

"I consider myself a little bit of a frugal person,” he said. "In that way, I'm doing really well in not spending money that I don't have."

Sydney Krantz for BI