Check out Ehow - for natural cures - mine is the first post.... scroll down.

BTW - I use Blue Dawn now, but Regular Joy can still be used.

http://www.ehow.com/how_4389_protect-pet-fleas.html

My Post:

by eHow Friend on 11/22/2005
How to Rid Your House of Fleas Naturally - Use JOY dish soap to bathe your dog. It kills the fleas on contact....... go to site to read more.