How can I organize the outliner with groups? When I learned the basics of Maya awhile back, they taught us that we could organize and clean the outliner window with groups. Anyway, it doesn't seem that I can hide multiple objects into one grouping in the Outliner in Blender. 

Is there another way of doing this?
Basically you can use Groups and Parenting to organize your scene.


Grouped objects are displayed hierarchically in the group view.





Parented objects would be displayed hierarchically in the outliner's default view.




See the Outliner Documentation for more detailed information.