There is always one or two friends on Facebook force you to decline 42 Human Pet Invitations or 200 Food Fight Requests, with this trick you’ll never have to Facebook deal with invitations from those applications or ‘friends’ anymore.
When you receive an application request, you can now have the option to “Block This Application” to never see that application again, or hit the “Ignore All Invites From This Friend.” to block a friend who’s particularly aggressive with the invites.
The opt outs are a real blessing.