So my 13 year old cat had major abdominal surgery this week. Everything went well and I have her meds and food under control, but I'm looking for suggestions re: litter. I've been using Yesterday's News and she HATES the newspaper pellets. I added a couple of handfuls of her regular litter to the bottom of the box, but it doesn't seem to make a difference. I have to pick her up and put her in the box 6-7 times before she decides to go (and I know she has to go because she keeps walking around the box). Any ideas??