For my entire life I have faced long lines of parked shopping carts that force you to walk all the way from one end to the other and wait for each person get a cart. Some smart manager figured out that putting the carts in short rows the entire process would be much easier and faster. Simply brilliant.
Assignment: Detail photos are not merely macro photos. It can be of any subject that is small in size or small in relation to the background. They are often used to tell the story of a situation by focusing on only a small portion of the big picture. You can draw the viewer’s attention to these small details with depth of field, panning, leading lines, complementary colors or by having your subject lighter or darker than the background.