In 2016, Audrey Finocchiaro and Sam Lancaster were just two young entrepreneurs trying to make ends meet with their self-built coffee cart. They had maxed out a $1,500 credit card to piece ...

Then I’ll warm up the cart and make sure that the cart is running, and I’ll check my stock to make sure I have stuff for the day. 5:30 a.m. — I drive to the city from Jersey City.

In just 30 minutes, the entire cart sold out, bringing in $400 – a mind-blowing sum compared to their usual earnings. "It was the first time we saw the potential in what we were doing ...