Jason Snell was lead editor at Macworld for more than a decade and has written about Apple and other tech companies for two decades. Now he writes at Six Colors. He's also the guy who runs The Incomparable podcast network, which is all about geeky pop culture, and hosts the Upgrade and Clockwise tech podcasts.
Move a File in the Finder
Sometimes you want to move a file in the Finder across volumes, not copy that file. Holding down the Command key while dragging ensures that the item is copied, and then its original deleted, adding up to a move.