I use .............nothing! I've never been a regular user of flea preventatives and about four years ago I stopped altogether. About two years ago I found a flea on one of my two Cockers and immediately treated both with Practic and sprayed the house with Indorex. No further problems.
The reason I stopped was because I don't like to use chemicals on my dogs unless necessary. Maybe I've been lucky in not having any problems with fleas, I don't know. But for me personally it was the right choice to make. I groom my two regularly and check them daily for ticks and anything else they may have picked up while we've been out walking in the New Forest, so I'm pretty vigilant and I'm sure that helps
