SD Mart on Fifth Avenue in downtown San Diego's Gaslamp Quarter operates an independently owned closeout convenience store near the Fifth Avenue trolley corridor. The merchandise mix spans snack foods, beverages, canned goods, smoke-shop accessories, incense, and assorted general merchandise—the same eclectic retail category that drives collectors to Centre City Sports Collectibles on the same Gaslamp stretch. Pricing follows a closeout-and-bulk model, with multi-unit deals on snack items and single-serve beverages positioned for impulse purchases from Gaslamp foot traffic. The store's late-evening schedule serves the surrounding nightlife district, filling the gap between full-service grocers and the 24-hour convenience chains on adjacent blocks. SNAP/EBT acceptance covers eligible packaged food items, extending the same payment flexibility available at garment-care providers like Shelton Cleaners who serve the same downtown residential base. Peak-demand inventory concentrates on single-serve energy drinks, bottled water, and tobacco accessories merchandised in high-turnover display racks positioned for rapid grab-and-go transactions near the register.