Christine's Coffee in downtown San Diego occupies a weekday-morning post inside the Comerica Bank Building at 600 B Street, serving the Columbia district's financial-office corridor with espresso drinks, drip coffee, and pastries from a compact cart. The operation has held the same lobby location for more than 20 years, building a commuter-coffee rhythm in a stretch of downtown where the nearest independent roaster option is Lani Coffee several blocks south. Weekday service runs mornings only, calibrated to the office-tower schedule of the surrounding B Street and Broadway corridor. The cart format keeps the menu tight — espresso-based drinks, fresh pastries, and teas — a streamlined model that contrasts with the broader pour-over and single-origin programs at destinations like Blue Bottle Coffee elsewhere downtown. The most specialized service is recurring daily coffee supply for the building's tenant base — a standing-order relationship that keeps the cart stocked and the lobby caffeine pipeline uninterrupted.