I think I found the answer

[happylitter]

Get Worlds Best Cat Litter and put a couple of inches in each pan. Add a little baking soda. Get Worlds Best Cat Litter and put a couple of inches in each pan. Add a little baking soda. Buy Trudge It little purple charcoal squares from web site. Attach 1 to each pan via little hook on product or use a bent paper clip if needed to hang. Remove clumps every day with litter thing. Remove stool as needed. Add a little baking soda again. Fridge it is supposed to last 6 months.
Absolutely NO odorous and almost no tracking. Not sure when or IF whole boxes need changing. It's a MIRACLE! I have 2 cats and 2 big boxes.

[VIDEO][/VIDEO]​

 

[MoochNNoodles]

Hm; that's interesting!  I don't have much of an issue with odors from the litter box in the house.  But my laundry room (where our boxes are) does smell like...litter!  I'll have to look into that product.