Litter

Toilet litter is now available in many forms.  Some cats are only happy with one type but whatever you use you must be sure that you keep it clean.  Cats by nature are fastidious (one of the reasons we keep them as pets) and they will refuse to use a dirty litter box.  Clean it twice a day.  Maybe have two - one always out in the sun freshening up and drying. 

Some litter has a second use on the garden i.e. Lucerne, paper pellets or poultry laying pellets.

Emergency letter can be sand or soil from the garden.  These are very useful when training an outdoor cat to begin indoor living.