Always looking to increase my efficiency, I recently checked out a list of tips for quicker workflow in Photoshop. One I’d never heard about explains how to select a color from outside of the Photoshop screen. Using the eyedropper tool, click in your opened Photoshop document. Then, keeping the mouse button held down, drag the eyedropper tool to wherever you want to pick the color from. Thanks Designer Daily! Check out the whole list here.