Lego.com has all sets 10% off plus shipping for orders over $49. According
to the email I received it starts on Friday, however the price is already
effective in the cart. The free shipping is currently only working for
orders over $99 but this should be corrected in the next couple of hours.
The email received state that is either online or B&M stores.
Also, the deals page will be updated daily throughout the weekend.
Link: http://shop.lego.com/SalesAndDeals/Default.aspx?va=1