I keep my hamster in a Rotastak cage, which is connected with plastic tubes. The thing about this is my hamster likes to use them as a toilet, making me have to clean her cage more often and it's just disgusting! How can I stop her doing this??
My science teacher taught this to me. She uses a little container (a flat dish of some sort); I used one of those hummus containers. Fill it with kitty litter (any kind), and she will go there to pee all the time. Don't know how, but it worked with my hamster. Try it! Those hamster litter and potty things never work from the store.