If you have opened your home and heart to a pet, it is your obligation to be certain that he/she is comfortable, which means providing heated accommodations during the winter and protection from the elements. Some varieties of dogs may require a sweater or coat to wear when the temperatures dip. Be careful of their feet. Salt and chemicals on sidewalks can be harmful to them. Consider wiping their paws after a walk. Limit outside time. Prepare a warm inside space for them. You will both be happy.