I covered the floor of my shed in hay and then all I kept finding was poops and I am sure she was wee'ing in it, I was a bit concerned about her then eating stale urinated on hay, so now its in the litter tray, on top of the little hidey house (where she tends to sit) and inside the hidey house (which gets used as a litter tray) and then a pile in one corner. The only one I don't change everyday is the stuff on top of the hidey house. The rest gets changed and I have wondered if I am being a bit over the top on cleanliness?