http://www.slate.com/articles/video/the_short_cut/2015/07/how_to_roll_your_shirtsleeves_the_three_methods_that_don_t_compromise_style.html

There are plenty of reasons to roll up your shirtsleeves: You're ready to do some serious work. You're ready to eat some serious food. You're seriously hot. However, there is never a reason to roll incorrectly, which can sacrifice your style, or worse, cause you to iron your shirts more often. (Or pay for your dry cleaner to press your shirts more often.) In the video above, find out what rolls are best suited for what tasks.