Cardboard “eclipse” glasses with lenses of optical Mylar cost about $2. This will allow people to safely look directly at the sun. It filters out most of the light, all of the dangerous infrared and ultraviolet radiation, which tans our skin. Buy one well in advance, and you can look at the sun anytime. Be sure you are purchasing legitimate ISO-certified glasses to ensure proper eye protection for direct observation of he sun. Using sun glasses or non-ISO certified glasses can lead to eye injury.More on eclipse viewing safety.