Soloing your layer can be a life saver. This will help you temporarily show one single layer or many single layers at a time. What makes this switch so important is its easy to turn on and off without changing any of your original layers. Its also easy to tell which layers you have soloed therefore making it easy to turn off the solo switch when you need to. To activate the solo switch simply turn on the solo button. If you solo something you will see the grid behind it, this grid means that it is a transparent background. Turn off the Solo switch to return it the layers to its original condition. This becomes really helpful when you have a lot of layers and you want to locate and identify and work with just one layer, you can solo it:

Understanding how to solo your layers will hep you quickly turn on and off hundreds of layers with no fear of ruining anything. Try practicing with the solo button on a layer.