I use the scoopable litter, and have four very large boxes. My kitties insist that I scoop them at least 2 times per day. Preferably 3 times. They do not like a box that has waste in it.
Rainbow, Abbles, Carmy, Kissy, Peaches, Cream, (kitties) and Littlebunny boy (elder bunny)
the pic is the last one of my meecee kitty (5/9/89 - 1/9/08)