@Robert Gentel,
How true. I have 4 cats, they have a cat tree to the ceiling. It is near my armchair and I am sooo fed up with them dive bombing on to the back of MY chair! waht a cheek! They do love it but they also love the softness of sofa backs. I am fed up with the tree as it takes up so much space in my little room. Am thinking about floating shelves and putting carpet on them..... ideas appreciated! Karen