A bit of background: I used to work for a pet store, and hamster cages were cleaned weekly. It was a time-consuming job, especially since we still had to help customers at the same time. In my dream, I was cleaning those old hamster cages. Only there were far more than in reality. I didn't have much space to work, the critters kept escaping and had to be caught, and whenever I thought I was close to done I'd find a bunch more cages to clean. A coworker from my current job was there, and she flippantly dismissed my request for help and went home. It was late at night, and still there were more cages. I woke up briefly once, only for the dream to continue when I fell back to sleep!