I'm at the end of my teather with them. Puss is teaming with them (not had her long). I've brought flea stuff directly from the vets twice (spray and spot on) and she's still crawling. I've washed my rugs, bedding and used spray across the house to rid them.
I took her in as a rescue in the street (she's a kitten). Skin and bone she was and completely covered in them.