Common household items that are harmful to your dog:

Acetaminophen

Antifreeze and other car fluids

Boric acid

Deodorants

Deodorizers

Detergents

De-icing salts

Disinfectants

Drain cleaners

Furniture polish

Gasoline

Hair colorings

Weed killers

Insecticides

Kerosene

Matches

Mothballs

Nail polish and remover

Paint

Prescription and non-prescription medicine

Rat Poison

Rubbing alcohol

Shoe polish

Sleeping pills

Snail or slug bait

Turpentine

Windshield-wiper fluid

Symptoms of possible poisoning are: vomiting, diarrhea, difficult breathing, abnormal ruin (color, aroma or odor, frequency, etc.), salivation, weakness.  If your dog should inject harmful chemicals, contact a veterinarian or poison control center immediately.