Close
(Went to post this in a comment re: post #16774, then remembered there's a better place ...)

Watch out for those little white lines at the edges of images when cleaning up images--they really stand out when there's a sharp color contrast at the edge, and it's really easy to miss in Photoshop. I try to remember to view cleanups in something like ACDSee (with a dark background), and it's usually just a couple pixels to crop.