Meet Sarah, a thrifty second-year Environmental Studies student at the University of Waterloo. An avid outdoor enthusiast and a passionate advocate for sustainable living, she’s dedicated to finding eco-friendly options for all aspects of her life, including her study materials. Struggling with the high costs of textbooks, Sarah often rummages through online marketplaces and local exchanges to find “filthy” second-hand books at reasonable prices, believing that every penny saved is a win for both her wallet and the planet.