Good Stuff
Tried the various types of Catsan, and despite what the ads say, it smelt absolutely appalling and was a pain to clean out. World's Best is expensive but controls the smell really well and doesn't track too badly. Really easy to clean out, one big bag last two house cats (two trays) 2-3 weeks. Good stuff. It has a slightly odd smell, but at least the cloakroom smells of litter, not cat wee!