I have a very large document, and along the way I have made a lot of changes and new layers. I have a tons of layers and groups and I'm now sitting and organize everything manually.
Is there are fast way to clean up unused and empty layers?
The easiest and best method would be this:
In yours Layers tab click to the Filters which says Name, in the dropdown select Attribute
Next to the filter there will be another dropdown where you need to select Empty to reveal the empty layers.