OK, several months ago, Jellybean and I got an automatic cat pan...it was not as effective as we would have liked and, well, it broke because Liberty is a "digger" and must go on the plastic, so things "stick"
I was at our Big Box pet store getting some supplies and I was looking at the cat boxes and saw a "Litter sifter". It is a cat box with 2 "regular" pan and one "sifting" pan. You put the sifting pan into a regular pan, and pour your clumping litter over it, then when you go to clean, just lift out the "sifting pan" and dump!!! It is SO easy and has cut my litter cleaning time to seconds a day instead of hours playing "find the clumps".
When you finish, you put the sifting pan into the empty "regular" pan, and dump the litter into that, placing the now empty pan under the other 2.
We are getting more of these, and I saw some on line for $10.00, they were different from mine, which was a bit more, but man, they are a heaven send to me!
Just wanted to share, thought you might be interested! (My old roomate had something similar years ago, but I have not been able to find anything like this for a while)