My female kitten is 8 months old and has been with me since she was 8 weeks of age. She was reasonably well litter trained (used Catsan litter and preferred an open litter tray) but prone to the odd 'wee accident'. We got her with her brother and he has always, without fail used the litter tray. Unfortunately she has carried on weeing outside of the litter tray at least a few times a week, e.g. by the back door, on duvets, baskets of washing, rugs and our 2 leather sofas. She has free access to the back garden during the day and prefers to wee there or anywhere in the house other than the litter tray. In fact she often wees on the floor next to the litter tray. She has been checked by the vet, has had cystease capsules, and we have feliway plug-ins. There have not been any changes that might provide a behavioural explanation eg no new cats to the neighbourhood, no changes in the household etc. I'm desperate to solve this so please, please post any ideas you have!