Arranging objects in the Maya outliner is crucial for maintaining an organized 3D scene and improving workflow efficiency. Here are some tips to help you effectively manage your objects in the outliner:

1. Naming Convention: Start by establishing a clear and consistent naming convention for your objects. This will make it easier to identify and locate specific items in the outliner. Use descriptive names that reflect the purpose or function of the object.

2. Grouping Objects: Use groups to organize related objects together. This can be particularly useful for complex scenes with multiple elements. You can create a group by selecting the objects and then going to Edit > Group.

3. Parenting Objects: Parenting objects is another way to establish relationships between them. This can be done by selecting the child object first, then the parent object, and finally going to Edit > Parent. Parenting can help maintain hierarchical relationships and control the transformation of multiple objects together.

4. Display Layers: Utilize display layers to control the visibility and organization of objects. You can create new display layers and assign objects to them, making it easier to manage the visibility of different elements in your scene.

5. Color Coding: Maya allows you to color code your objects in the outliner. This can be helpful for quickly identifying specific types of objects or categories within your scene. Right-click on an object in the outliner, go to Display > Drawing Overrides, and select a color.

6. Outliner Filters: Take advantage of outliner filters to customize the display of objects based on specific criteria. You can filter objects by their type, selection state, display layers, and more. This can help you focus on specific aspects of your scene and streamline your workflow.

7. Hierarchical Display: Maya's outliner supports hierarchical display, allowing you to expand and collapse parent-child relationships to focus on specific parts of your scene. This can be particularly beneficial for managing complex scenes with deep hierarchies.

By implementing these techniques, you can effectively arrange and organize objects in the Maya outliner, leading to a more streamlined and efficient 3D workflow. Taking the time to establish a clear organizational structure will ultimately save you time and frustration as your projects become more complex and detailed.