i have had that prob with the Tesco stuff, fortunately they had some last week, so I bought a lot, and then got asked by the RSPCA people if I had a lot of cats!! Actually, that keeps happening, need to stop bulk buying!! I might try that Cats Best from PAH, but it is such a journey to get to it, it would cost more in petrol than I would save using one from a supermarket. Either that, or I go back to Sophisticat (dont like wood based ones)