I clean the box whenever I think of it, but since my mind is sort of forgetful, I find it's best when I move both boxes into the main room downstairs. If it's kept in an open closet, I rarely clean it, because I'm bend over, coats getting in my face, hair falling foward, Buffy bugging me, etc. so I take both boxes, move them into the main room, and they stay until dad finds out and moves them back.
But when they're in the main room, I scoop them every day. If one of the cats go when I'm in the room (they're behind me, near the wall) then I'll scoop when they're done. I find that Willow never goes when I'm there, only Buffy. I guess Will got fed up of having people stare at her and laugh at the "concentrated" look on her face! lol!
Aaaaanyway, both boxes have different litters. They're both stuff from Superstore, where the low quality food is. Its because my parents never think to go to a pet store to get pet stuff, they get the pet stuff when they do their major grocery shopping. But the cats have never complained (bless their souls! they didn't even complain that one time when there box wasn't cleaned for *gasp* almost a month!). One box is clumbing, a no-name brand. The other is a kind that turns pee into black dust, and I hate it. It's looks exactly like gravel you sprinkle on ice. Now, what I would like is for the cats to use the clumping litter for pee, and the gravel-stuff (also a no-name brand) for poo. So far, they're getting the idea. Well, they're using the clumping the most anyways, but it seems like every time I scoop the litter boxes, there's one pile of pee in the gravel and at least 3 in the clumping.
A few days ago, I found a pet store not too far from my house, so I may be going there more often to get the pets stuff. The cats don't get new litter until the major shopping spree, which is about once every 3 months. But now i can get new litter every couple of weeks! weee! (and new cat food too! The new stuff we got [also a no-name brand] is making Buffy's poo stink!). Right now, the litter seems to be starting to smell, so they're in dire need of new litter. (oh, and I think I'm lucky in the fact that i don't put spray or newspaper in the boxes, and the clumping litter doesn't stick to the pan. The sides may be as straight as can be, as they were lying against the walls, but they come free easy as can be).
One question: every time I scoop the clumping litter, i know which clump of pee came from which cat. Buffy is a tiny thing, so all the small stuff comes from her. Willow, on the other hand, holds in her pee till late at night, and then just lets it all go. Every time I scoop, theres a huge clump of pee, about the size of a baseball (or maybe a smidge smaller). Could that be something to worry about, or do other cats pee that much too? I've got suspicions that Willow could be diabetic, as she drinks alot and pees alot (she used to pee as much as she cared too, several times a day, but it seems now she prefers to do it once a day and pee and extra amount).