You may believe that you are an extremely well-kept person, but this idea can be deceiving. Cold viruses are easily passed from one person to another through both direct and indirect contact. Direct contact would include someone sneezing in your vicinity, such as a relative sneezing in a car. Inhaling the tiny droplets of virus-laden mucous floating in the air could cause you to develop the cold yourself. Direct contact, however, is not the most common way to catch the cold.
Indirect contact causes many more cases of the cold.
Opening a door and using a restroom are both examples of indirect contact. You met other people, shook other hands, probably touched a doorknob at some point and didn't wash your hands when getting home. It is VERY important to wash your hands before handling your baby, especially before feeding her. Virus particles from your hand can be rubbed onto little Katie's hands and then transferred to her eyes. You see, the eyes are where up to eighty percent of all colds enter a child's nose.