Sabrina: The Animated Series (1999)

Season 1: Episode 61

Hilda and Zelda have a hard time carrying home grocceries so they get a job to earn a car, but Zelda does all the work and Hilda gets all the promotions so Zelda quits and Hilda has a hard time managing the job by herself. She eventually needs Zelda's help but it becomes to late and they both get demotions. Meanwhile, Salem needs Sabrina to be at a prize giving ceremony in Salem's place.