I cant handle keeping a litter tray in the house- its gross. The final straw was when I caught my dd(age 3) playing with the litter (aaarg!!) So we have tried to train the cat to go outside.. with some success but not completely. She tends to wee/poo in the living room if we leave her overnight (i guess she has nowhere else to go!) she cant seem to hold it till morning. So the solution has been to put her out at night time. Is this ok for the cat? even when its cold? She has been meowing outside the door/windows wanting to come in.. I do feel a bit guilty.