Ever the tightwad, I was in a pet shop the other day and saw some cat litter that looked promising as a cheap tumbler media. I worked out it was 1/4 the price of corncob media so thought I'd give it a go.

Ahem....cases came out dull and dusty. I had to put them back in the corncob media for a couple of hours.

Has anyone found a good cheaper alternative to walnut/corncob? I know it's unlikely to change my lifestyle but if i can save a few quid....