The author of "Mindful Work," New York Times reporter David Gelles is a self-described "sporadic meditator." During the day, Gelles says he uses so-called "meditation hacks," such as waiting a beat or two before picking up a ringing phone or practicing walking meditation around the office at work. Earlier this month, he wrote an op-ed for the New York Times Sunday Review called "The Hidden Price of Mindfulness, Inc.," in which he talked about the "mindfulness economy" and the hundreds of products out there, from books to apps to a dairy-free mayonnaise substitute called Mindful Mayo, all carrying a "mindfulness" label.