This article is from the Fleas, Ticks, and Your Pet FAQ, by tittle@zmall.com (Cindy Tittle Moore) with numerous contributions by others.
In general, you will have to use a combination of some of the
approaches above. You will also want to launder any bedding and other
launderable items to rid them of fleas at the same time. If you comb
your pet regularly, you will be able to spot an incipient increase of
fleas and make pre-emptive strikes. If you have a bad flea problem,
getting your carpet professionally cleaned in addition to other
control methods will help in removing potential food sources for the
larvae.
People have asked me what my personal methods are. I prefer to use a
IGR type of spray. I obtain Vigren (methoprene) from Gardens Alive!
and spray my house every four months and also after I have the carpets
cleaned. Since I show my dogs (hence exposing them to flea-infested
sites), I will take some preventive action before going by spraying
them with Ovitrol Plus by VetKem which is a mixture of
microencapsulated pyrethrins and methoprene and seems to last a long
time, several weeks if they don't go swimming. I have not had a
serious problem with fleas for several years, despite living in
Southern California. I have also used Borax in the carpet to good
effect, but have become concerned about possible inhalant problems and
damage to the carpet. Since one of my dogs and my cat have flea
allergies, I have not tried out the Program product, nor do I intend
to, though I've heard plenty of wonderful things about it.
 
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