Niskayuna students

Kids' clothes hang in the Trendy Tots boutique. Photo by Rebecca Isenhart

Costs can add up as kids head back to school

By REBECCA ISENHART Gazette Reporter NISKAYUNA — Back-to-school: The phrase conjures up a tableau of pointy yellow pencils, still-unscuffed sneakers, and waxy red apples in decorative backpacks. But those niceties aren’t cheap. Preparing for the first day of class is…