I was recently given the gift of a copy of Jackson Galaxy's book Catification, which has given me a list of things I'd like to do that's longer than my arm...The first thing I've done is made a water fountain. I used an Aqua Clear 20 fish tank filter and a stainless steel stock pot, and it's AWESOME! With the number of cats in the house, the cute little fountains they sell in pet shops don't cut it, but this is perfect. I wish I'd done this years ago; my cats think its the best thing since catnip, especially my thirteen year old Tortoiseshell Morgenne, who's always loved to play in the kitchen sink.