Filter friends activity
I think it would be great to have the possibility to choose which of your friends activities you want to see. This can be very useful especially for those who have many friends. In my case, sometimes I receive so many notifications, that I have difficulty to see what are my closest friends (in cinematic taste) doing.
I'd like to add: a feature to select which type of updates are shown (eg friend's checks or friend's comments). I see millions of checks on the activity page, but I would prefer only to see their comments.