The sun is shining bright and the warm, exciting breeze is blowing across the country. Summer is here and that means there are going to be tons of awesome events, activities, festivals, and generally fun times coming up. Many of which would be perfect opportunities for some custom designed tee shirts. Here are a few such awesome summer time activities to have tee shirts printed for. Independence Day. The Fourth of July is fast approaching. Whether you plan to go into your town or city to watch fireworks or be one of the estimated 74 million people grilling out on…