I mentioned before that I won't use clumping litter ever again. With Looney1, I started using PetSafe crystals.
https://a.co/d/5uojk1y. I get the lavender scented - it really isn't much of a scent, neither is the blue. You can see when it's time to empty because the crystals turn yellowish as they absorb.
It is so much better. Less dust than any other type of litter. Non-clumping so it doesn't stick to the bottom of the box (or inside the cat tummy). The crystals absorb the pee so it isn't wet and won't stick to cat feet and there is no urine smell at all. Easy to sweep up if it spills. Just pour one bag into you box and scoop up the poop each day (I use doggy poop bags for that). After one to two weeks, I pour the entire contents into a small garbage bag and toss it in the garbage and empty a new fresh bag in the box.
When I just had Looney1, one bag lasted two weeks easy. With the addition of Looney2, I used two boxes and two bags every two weeks. With the addition of the girls, I use three boxes and three bags every week - I added a box downstairs.
There is never any peeing outside the box and Looney3 only poops outside the box if I don't clean the poop out often enough (which is actually several days .
And it is so lightweight - the cardboard box two bags came in is heavier than six bags of the litter. Which makes emptying the boxes so easy - I just open the garbage bag, pull it over one end of the box and lift them together and the contents go straight into the bag.
I really cannot praise it enough.
For boxes, I use these:
https://a.co/d/0Ntbulc
They are big enough for Looney2 to use easily and the sides keep any digging inside. I've never had the poop hanging off the side as with other boxes. And the bag of litter works perfectly - deep enough for the cats to dig but not so much that any is wasted.