does anyone else use the crystal clear/white granual type cat litter, i was talking to the girl in the shop about my house occasionally smelling of cat pee with the other types of litter and was getting pricey with constantly cleaning the tray, it was very expensive and the lady in the shop didnt actually know if it worked as well as they claimed, so she let me have it cheap providing i gave them feed back on it..................................well i have to say i really dont think i will go back to the pellet or grit/clay type, it does exactly what it says on the packet, all i've done is remove solids, i'm really chuffed with it, there is no cat pee smell at all, they claim one tray should last one cat one month so i'm testing how long it lasts, so far i'm impressed, has anyone else tried this type of litter