I will let you know one great secret about kitty litter! You can use it to deal with sneakers that are dirty and smelly!
Deodorise them and your reeking joggers too with this simple trick. Fill up a couple of old socks with scented clay based kitty litter. Tie them shut and place them in the sneakers overnight. Repeat if necessary until the sneakers smell fresh and are ready to use! Just remember to ask us before using it.
Also note that since this tip comes from Readers Digest, Extraordinary Uses for Ordinary Things rest assured that the lawyers of the Cat Colonies around the world are planning to sue the Editors of Readers Digest. And all those who use up cat litter for human use. So beware!