Reviewing your old (and perhaps embarrassing) Facebook posts by using the “Activity log” is a lot of work. Active users have thousands, if not tens of thousands of likes, comments, posts and so on to go through. An easier way is to check the “On this day” feature once a day. It lists all the posts you made on that particular day of the year. If you do this every day for 365 days, in theory you have just gone through all of your Facebook posts!