Our hours of work have all changed since the kids left school and work, our cat had a couple of accidents due to being left in the house and our new house not having a cat flap. We got a litter tray and have put it in the ensuite as that was where she had been having her accidents. She has now decided to become an indoor cat and I absolutely hate emptying the tray daily, and she does it when we are all in the house, ...yuk....she is 8 years old and has no health problems, is this normal for cats? Should I just put the litter tray out when there is no one in the house?