One of our cats likes to jump up into our window sills and get behind the blinds to look outside. Unfortunately, the sills are quite high, so she grips her claws into the wood and pulls up, leaving scratches everywhere. She also is causing damage to the expensive blinds. We have put tape in some of the window sills, which has kept her out. But, she just keeps moving to different windows. Short of putting tape in every one of our windows (which looks horrible), what can we do to keep her out? We've thought about setting up one window for her to be able to look out without getting in the blinds or scratching the sill, but we're worried that she'll still have a preference for many of the others in the house. She seems to pick and choose randomly as it is right now. Any advice?