Top entry litter boxes are great for helping to keep kitty litter tracking to a minimum. We also find it's a great choice for high-pee-ers -- the high sided boxes limit the possibility of spillage for stand-up pissers! Top entries are available for traditional litter boxes as well as more automated styles. Find your favorite!
Our boys aren't the best at digging, covering, and generally scratching up their litter. William paws at the wall, and all of them have trouble covering up their business. Sometimes when they do manage to dig around in the litter, they dig and paw so hard that litter ends up everywhere. We had this problem especially in one location, so we recently replaced their old box with a top-entry box like this one from Modkat.