I use these cat boxes:
Omega Paw Cat Litter Box | Litter Boxes | PetSmart
They come in 2 sizes and work by flipping the box upside down and back over to separate the poo from the litter. The litter gets sifted into an compartment in the side and the poo goes in the drawer for easy disposal. It would be nice if there were some sort of apparatus to push a button and have it flip automatically so I don't have to bend down and touch it. Being able to control speed and direction is a big plus too. An android app to control it remotely is a bigger plus.
