A variety of LEGO polybags are now discounted at Wal-Mart stores in America. Forum member minifigW reports finding a selection of polybags available for $2 each. Sets include Spieder-Man Spider Jumper, Joker Bumper Car, Elves Magic Fire, Friends Mini Golf and more.
In addition, there are many other sets discounted as well. Check your local store for details.