Modern Americans are all aware of the hazards of not wearing sun screen. Anyone hoping to look forever-young is familiar with the importance of daily-application. Many are asking an important question about sunscreen: do the sunscreen rules remain the same for the summer? For instance, does more sun equal more product? Should we invest in a higher SPF? Or apply it more frequently? Should our makeup have SPF, too? All very valid questions since we're spending more time than ever basking in that sweet summer sun.