Is this the perfect save icon?
Etch
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This conversation has been had by many designers for quite some time.
The most specific, recorded conversation that I’m aware of started back in March 2013 - https://web.archive.org/web/20150602023509/http://branch.com/b/redesigning-the-save-symbol-let-s-do-this (Interestingly this article includes a lot of the same points, which makes me wonder how much of this is original thinking versus the author having seen and summarized the original Branch discussion.)