Here are some tips for organizing and maintaining your Sketch files.
Share resouces for inspiration or base to kick-start a project. Most of the wireframes, websites and apps we build have common components, icons, styles, and patterns. Thus, consider including reusable and organized design components in your resource.
Grouping related layers will keep your document organized. To create a group, select few layers, and hit Command+G. Then, Command+R to rename it. By using Pages you can separate UX flows or concepts into sections.
Use good and consistent naming conventions for your Pages, Artboards, Layers, Shapes, Groups, Symbols, and Text Styles. Your developer and designer friends will love you. Whenever you create a layer or group, hit Command+R right afterwards to add a name. Alternatively, use Rename It to batch rename layers and artboards.
You can turn any button, row, box, or entire UI frame into a Symbol. If you include a slash (/) in your Symbol’s name, Sketch will treat these as group separators. For example, two Symbols named Button/Normal and Button/Pressed will be grouped together into a submenu called Button. Consider creating symbols for all repeating patterns or UI elements.