I put a shelf under a window for my cats to sit on.  Of course, they needed it to be cushioned.  SO.....first i put blue painters tape down, then a strip of carpet tape, then a cushioned purr pad.  This carpet tape sticks very well, releases from the protective backing easily and is easy to un-stick from the blue tape.  I think it is a great product  And--best of all--my cats agree.