Much has already been said about the use of CAT tools. This cat tool works best after a long day of work. There’s nothing better than coming home to a furry friend, ready to purr all the heavy thoughts out of your head. Terry Pratchett wrote about Sub-Post Office Cats. They were usually black with white paws. Grey ones make good friends. Black ones provide you with good energy. Gingers work well with artists. And bicolors make perfect assistants. Got some invoices to pay, papers to order and extra catnip? Trust a bicolor with that!