Finder views leaking memory
use the Finder’s Icon or Gallery views to browse Quick Look thumbnails of images, movies or other files. If you do, you might have stumbled into their persistent effects on the amount of memory used by the Finder. Particularly when you have folders with dozens or even hundreds of files, browsing them causes the memory used to climb steadily into GB. Close those windows, and the Finder doesn’t return that memory as it should,
