I wanted to share something that I've found to be most useful. While under under the influence of a recent spring cleaning frenzy (I even pulled out the sofa... EEEEK!), I came across sheets of heavy plastic mesh that are used as a base for a sort of needlepoint. The plastic is around 2mm thick, with holes less than 2mm wide. I put the mesh sheets in front of litter boxes to prevent litter tracking. Since the floors in the ferret condo are mostly linoleum, tracking has been a constant problem. Litter now drops off their feet and through the mesh. No more tracked litter in the living levels. I just wash the mesh and vacuum under it weekly. Surprisingly, Guinness and Magill have shown no interest in playing with or chewing on the plastic. Cheers, Lynn, Mike, Guinness and Magill [Posted in FML issue 1201]