Summer tends to be a quiet period for a lot of freelancers. Your clients are taking their yearly vacations, slowing down their business and holding off on new projects. Similarly to the winter holiday slump, the summer slowdown just happens and there is not much you can do about it. You can, however, make use of your free time and be ready for the time when the projects start flowing in at a faster pace. Here are five of the most productive things you can do when business slows down in the summer...