Stopped by a TRU today and they had an extra 20% off clearance items. Checked online and it is also valid through the website (it gives you the extra 20% off in the cart). Picked up a Vita cover and an Adventure Time figure 2 pack. This should NOT be ymmv. There is no indication of how long the additional 20% lasts other then "ends soon!" online.
Disclaimer: I checked the last 3 pages of video game deals and saw nothing. I checked the TRU thread at the top and saw nothing. I hope I can help someone out!