I was getting tired of our 3 cats kicking litter all over the place. I bought this Clevercat litter box and it has significantly reduced the amount of litter they enjoy spreading around. It's basically a storage bin with a hole in the top for the cat to jump in and out of. My cats had no problem figuring out how to use it. (That's where the "clever" part of the name of the product comes into play. The "cat" part refers to the fact that it's for cats).
Mike Ramberg saw this photo on my G+ feed and pointed out a bonus feature of the litterbox: "We had one of those. Often they'd be using it with their head sticking out of the hole. Looked like they were piloting a spacecraft."
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects