A clever invention, and does exactly what it is advertised to do. Very beneficial to get at the places right next to furniture or boxes, in those angles that vacuums have trouble reaching. Only one negative I've noticed so far -- if you also have grainy bits of kitty litter in the carpet, the bits get stuck in the groove of the scraping end, and diminish the scraping power until you remove them. A pencil point works well for the removal, but it would be great if this rug scraper could be boug...