Next Best Rechargeable Bark Collars, I tried an open box that had two trays plus a sifter. You were supposed to sift the contents of one box into the other box so you didn't have to scoop. Dumping the litter onto the sifter resulted in a lot of dust. And, like the previous litter box, poop got caught in the sifter, and if I wasn't extremely careful, litter would end up on the floor. And, I now had…