1. Put both lids of the toilet up and add 1/8 cup of
  pet shampoo to the water in the bowl. 

2. Pick up the cat and soothe him while you carry
  him towards the bathroom. 

3. In one smooth movement, put the cat in the toilet
  and close both lids... 

4. The cat will self agitate. You may need to stand on 
  the lid to make ample suds.

Never mind the noises that come from the toilet,
the cat is actually enjoying this. 

5. Flush the toilet three or four times.
  This provides a "power-wash" and rinse". 

6. Have someone open the front door of your home.
  Be sure that there are no people between the
  bathroom and the front door. 

7. Stand behind the toilet as far as you can,
  and quickly lift both lids. 

8. The cat will rocket out of the toilet,
  streak through the bathroom and run
  outside where he will dry himself off. 

9. Both the commode and the cat will be sparkling clean.   

Sincerely, 

The Dog

HT: Don