I also found a couple unexpected surprise clearance items at a Target today. I just wanted to share with you guys and not let this get out to other sites, but I figure it's inevitable since it's no doubt not just YMMV and at this single Target. I wanted to make sure I could get a few of these sets at at least 75% off in a week or so without having to deal with the "change payment" return/rebuy method.
Here is what the Target had on clearance in the main Lego aisle, as always YMMV:
Atlantis Gateway of the Squid 50% off; IIRC it was $14.xx (left a dozen plus on the shelf)
Atlantis tiny scooter sub 50% off; IIRC it was $3.xx (left a dozen plus on the shelf)
Creator tiny cars 30% off; IIRC it was $3.xx (left a bunch on the shelf)
Harry Potter Quidditch set 25% off; $14.xx. (bought one for now and will return/rebuy and buy more if and when it drops further)
Lego Fire Boat 50% off; $24.98

(bought one for now and will return/rebuy and buy more if and when it drops further)