The decision is no cat. We decided it would be too hard on our current cat to adjust to new ones, especially kittens. The mouse situation is more of a bother than an infestation. We catch maybe one mouse per week to week and a half and only in our basement. The house is old and it would be really hard to plug up all the holes so we decided to keep going with the traps and let our Ezri enjoy her golden years as an only cat. We'll think about kittens after she is gone which I hope will not be for many more years.