Gnomebliteration! I want to say it here: The lighting and quality of screens in our Photoshop lab are just plain terrible. Filthy, dirty screens and bright-as-the-sun overhead lights form a combination that makes it very hard to do any fine cloning work unless I crouch down at a weird angle and squint.
[youtube=http://www.youtube.com/watch?v=fBqBmXuMVIs]