I need a cat carrier for my cat when we move to our new home. Its six hours to travel, without stops, but I have to small children, so I'll have to stop frequently, so it will be even longer. I don't live near any places to buy a cat carrier, and I can't afford much, so I was thinking of making my own out of a cardboard box. Has anyone ever done this, or know how, or have recommendations? TIA.