What works for me is the cheap clumping litter. I can’t afford the expensive stuff. I use Wegmans brand, but it’s really nothing special. I have five cats, and five litter boxes, not the “one more than the number of cats” that is recommended. Though, the boxes are all larger than standard. I clean twice daily, without fail.
I pick out every single broken off bit of clumped litter I can find, and there will be some, either from a cat scraping a previous clump by accident, or nailing one yourself by accident with the scoop. If I don’t know if it’s a piece of dirty litter or not, I pick it out anyways. That’s the same reason I don’t shake off every bit of dry litter that you pick out with the clump. Shaking too much can leave to bits breaking off. This routine enables me to go for two weeks per box without completely dumping and washing. I do add more litter if it gets low.
The boxes aren’t hidden away in the basement, or in out of the way spots. There are no out of the way spots in this house. You can’t smell a thing, even when you’re right next to the box. And, that’s not just me saying that. I have grilled friends who can be trusted to tell me the truth about it, just to make double sure. I know being this picky makes a difference, because, though I have a very good cat sitter who comes in twice a day when I’m gone, if I’m away for more than a few days, I can smell the boxes when I get home.
So, I guess what I’m trying to say is, don’t sweat the brand that much. Just keep the box clean and you shouldn’t have a problem. And, you know what? It doesn’t take all that long.