As the title says. Use code "lego20" at checkout. Max discount $60. Stacks with other sale prices. Free shipping when you spend $35 or more. Used it yesterday.
Update: Used it again this morning to save another nearly $60, so apparently the $60 savings limit is per order, not per customer.
Update #2: Neglected to mention that free shipping is 1-2 day shipping, depending on where you live.