This is almost twice as big as our landfill usually is for the same amount of time. Probably reflects some variance in buying habits. Plus, the bags that the cat litter and cat food come in take up a lot of space. We've since learned that our store sells the same cat food in bulk, so future landfill pictures will likely show a reduction. Number of human members of the household decreased by one about two-thirds of the way through this time period. Not pictured: used cat litter, which would be about twice the volume of the bag pictured.