I have 2 cats. 1 boy who's about to reach his first birthday and a girl who's about 6 years old. The girl goes potty maybe like once or twice a day and it doesn't smell too bad. The boy however drops SERIOUS stink bombs into the litter box. They seriously smell like death. Usually I scoop but I'm out really often so if I leave it there for a while it stinks up the whole place. What is the best cat litter for odor prevention? Please help and thanks in advance for your advice.