This is not helpful at all. "Other" has more than 50% of my storage 128GB of it. I know that there used to be multiple caches of gmail on my old Air. Now the new Air is full, 129GB in other. I deleted the caches and did not lose a single email in the old one but retrieved a huge amount of storage back on the old Air. Learning this, I will not buy a new one, I just want to clear it. So please help in doing this.
The tools provided do not address this. I was a pretty good hacker on windows because I had to, just help us please and not say "it is because it is" kind of nonsense.