Three young collectors, Chase and Cade Frieden and Kreightyn Johnson, have opened their own sports card business in St. Joseph called The Card Cave. The trio started the business in late July and have been learning the ins and outs of running a successful card shop. In addition to buying and selling cards, they have gained valuable experience in marketing, inventory management, and budgeting. The Card Cave is located in the Polished Porch Antique and Boutique Mall on Frederick Ave. in St. Joseph.