I'm a new mom to two pretty little raties, Max and Ruby. Currently, they live in a single critter nation at my school. I'd like a smaller, lighter weight, inexpensive cage that I can keep at my house so I can bring them home on the weekends rather than having to go to the school to clean, feed and play. I do give the free range time so they won't be caged all the time. I also want to be able to take the cage to a family member's house on those few weekends I go out of town. Does anyone have any suggestions for what type of cage will work for the weekend only? I've searched the local trift stores and I've only found tiny hamster cages.