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⌘⌃⇧4 – for screenshots that go directly into your clipboard

⌘O – open file/folder in Finder

⌘J in Finder, Set as Defaults — sets default view options for all folders (struggled a lot with Finder inconsistencies before finding this out)



I use the first one so often. So super-convenient to compose emails or Keynote presentations with some additional graphics plopped in directly from another window through the clipboard.




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