Six days to go!
Target is running a 20% off select Lego sets sale this week. At this rate the Lego aisle will be empty before Christmas.
Toys'R'Us has some deep deals, you just have to search for them. I'm also not sure if they're online only.
Looks like Kohls has some things on sale too.
Walmart has some good pricing too but be aware, the stores I've been in have been hit pretty hard.