This would work great if your cat isn't too fussy about the kind of litter he uses. My cat has never used a clay litter alternative so I don't know how she would react and I'm not about to find out the hard way that she doesn't like paper litter. She seems to have sensitive feet so I'm not sure if she would like scratching in shredded paper or not. If a cat doesn't like his litter, he won't use the box and I would rather not get her started urinating all over the place. I use an unscented litter now, because her nose is pretty sensitive too. Right now she's very good about using her box, and I don't want to jinx that and have her start avoiding it because it smells all perfumed... which is a smell more delightful for humans than for cats. I will look into this at some point, and perhaps put out a separate litter box with paper in it and see if she decides to use it. If so, then perhaps we will start recycling our used paper, though I'm not sure we have enough paper around here to keep that box filled with fresh litter all the time. I only have one cat, so I can get away with buying a 5 lb. bag of clay litter at the dollar store, but five pounds of recycled paper might have me scouting the whole neighborhood for papers and I'm not sure I'm up for that. In the long run, while perhaps not cheaper, (even though I only pay $1.00 a bag) commercial cat litter might be the easiest method for those of us who are fairly busy and can't spend half our lives looking for, cutting up, and treating shredded paper to keep that box full. Recycling is a lot of work, and although it sounds terrific on paper, you really have to make time for it in your busy schedule.