Erin is a former writer and assigning editor on the NerdWallet Content team who now heads NerdWallet's travel business. She's a credit card and travel rewards expert at NerdWallet, based in Baltimore, ...

A little more than a year ago, on a trip to Nairobi, Kenya, some colleagues and I met a 12-year-old Masai boy named Richard Turere, who told us a fascinating story. His family raises livestock on the ...