For all the Pinterest fans out there, you might like this Facebook app: Friendsheet.
Copying the Pinterest style of presenting images, but doing this with your news feed images and your own images from Facebook albums. Really nice way of presenting and what I like most that it shows the photos in the right format (and not “Cutting” them off as in the Facebook album view)

How can I opt out of Facebook Friendsheet after signing up?
Hi, you can remove the app: go to Account settings, then choose “Apps” on the left navigation, choose “Friendsheet”, click on “edit” and then click on “remove app”. If that is what you meant with Opt out?