I considered calling this post “Most Obscure. Feature. Ever,” but then I remembered the tweaky labyrinths woven as Russell Brown bribed various engineers for little improvements. In any case, knowing this tip would qualify anyone as Photoshop Illuminati:
When accessing File->Scripts in Photoshop, first hold down the Opt/Alt key. Instead of running the selected script, Photoshop will open it in the ExtendScript Toolkit (Mac/Win)–itself quite a well-kept secret.
Hey, I said it was obscure, but it could be a useful way to inspect anything from layers to PNG to Flash gallery creation. Thanks to Tom Ruark, Photoshop engineer & Russell’s collaborator on the Image Processor script, for pointing this out.