If you like the hustle and bustle of a market, you might want to head out to A Pedra Market in Casco Vello and take in the atmosphere. Splash some more cash at Centro Comercial A Laxe, Príncipe Street, and Centro Principe.
If you want to see a show while you're in town, try and grab some tickets at Centro Cultural Caixanova in Santiago de Vigo. If you enjoy the show and want to see another, Castrelos Auditorium isn't far.