Caroma has brought out an ingenious water saving toilet and hand basin product.  The combined toilet cistern and hand basin allow you to reuse the greywater runoff from washing your hands to flash the toilet next time you go. These systems have been around for a while, but this is the first time I've seen one available in Australia. Makes great sense not only from a water saving point of view, but space saving one too.

All the specs and technical details can be found on the Profile 5 with integrated hand basin page on the Caroma website.