I'd like to share a Maya script I've created for animators.
Hb Isolator lets you create bookmarks of objects in a scene and then isolate them as you choose in all viewports. Bookmarks are saved with the scene.
I use it a lot while animating to focus on one character at a time, or to show only facial controls and the mesh while working on facial animation. Great for focusing on what's important, only being able to select the right things, and performance gains from having less visible. I find using this tool is much more efficient than using Display Layers.
Written in Python, tested in Maya 2015-2016, but should work in older versions as well. Give it a spin!
To run the script, place it in your maya scripts folder, and make a shelf button with the following Python code:
import hb_isolator; reload(hb_isolator); hb_isolator.gui();