Annemarie Rose is bent over a sheet of glass, hair tucked into a messy half ponytail, tracing the outline of a heart into its glossy surface. She breaks it apart, sands the edges, and etches a simple ...

What makes a purchase “worth it”? The answer is different for everybody, so we’re asking some of the coolest, most shopping-savvy people we know—from small-business owners to designers, artists, and ...