Shameless plug of a weekend project from a while back (I'm pleasently surprised it still works): http://deja-entendu.zomg.zone

Auto-creates a Spotify playlist from your scrobbles from 6 months, or a year ago or whenever. For instance, if you want to walk a mile in the article author's shoes (ears?): http://deja-entendu.zomg.zone/gboeing