Rachel Green worked at Bloomingdale's in season 3 of Friends, starting in 'The One Where Rachel Quits' when she leaves her job as a waitress at Central Perk. This was a significant career move for her character into the fashion industry. Bloomingdale's is a real department store, unlike 'Waalmart' (misspelled Walmart) or 'Prada' (a brand, not a store).