A personal finance expert saw her friends leaving 'tens of thousands' on the table with money mistakes — but it wasn't their $5-a-day coffees

A personal finance expert saw her friends leaving 'tens of thousands' on the table with money mistakes — but it wasn't their $5-a-day coffees

Yuval Shuminer, the CEO of Piere.Yuval ShuminerYoung professionals lose money by keeping savings in low-interest accounts, says Yuval Shuminer.Shuminer, CEO of Piere, says daily purchases, like coffees, aren't the problem.Piere aims to automate financial optimization by finding the best deals.Young professionals are leaving thousands of dollars of their hard-earned money on the table, a personal finance expert says.But, she said, their money mis…