Crocs.com currently has two codes that stack together with free ground shipping.  In addition, items in the Crocs Outlet Section have an automatic 30% off.  Combine both codes with Outlet Items to maximize savings.  For example, this pair of Alice Crocs Shoes is normally $19.99.  It is now $10.07 shipped after the 30% outlet discount and the two coupon codes as shown in this screenshot.

• Code MYCOUP20 for 20% off      • Code C6VMRVKY3ISA for 10% off