Many household items can be dangerous to dogs and cats -- everything from antifreeze, insecticides, and aspirin to raisins and sugar-free gum. But don't panic. Many of these have antidotes. Call the Animal Poison Control hotline at 888-426-4435 or the Pet Poison Helpline at 800-213-6680 immediately. They can probably help you even before you get to the vet. (There is a fee for the advice.)