How do I tell my girlfriend that I don't really wanna hear the mundane details of her job?

My girlfriend likes to come home and tell me about her job that day. I don't tell her about my job. I don't particularly like talking about work when I'm not at work. And I am usually not in the mood to feign interest in the mundane details of her job when I get home. Anyone else know what I'm talking about? Talk about something else... I don't need to know everything you did at your job today.