Remap the Print Screen key to allow you to easily snip any portion of the screen with the touch of 1 key. For more information and to view a demonstration video, visit the blog post: https://frankbuck.org/screen-snips-with-1-key-my-new-favorite-shortcut/
UPDATE: I have created a new post and video to go with Windows 11. You will find that information here: https://frankbuck.org/windows-11-snipping-tool
