It is a great idea to separate different types of media as well, usually into sub-categories. This means splitting up video clips, photos or other types of pictures, audio segments and music tracks, and any type of imported video effect or transition. Depending on how you are trying to arrange the entire project, try having a Collection for each type of media for each chapter or segment of your video project. If you want to properly arrange all of the files in a Collection simply go to View in the task bar and select Arrange Icons By.