In addition to litter boxes with wood pellets, I lay out a number of potty pads around my ferret room. I've done this for years. Dog pee pads are expensive and small. For $23 - $25 at Sam's Club I buy a big package of adult incontinence pads. There are 8 bundles in the package and about 14 pads per package. They measure about 18" x 24". I even cut them in fourths to help my paralyzed ferret with her potty problems when she's semi in one of her sleeping cubby holes. [Posted in FML 7792]