A few to keep in mind:
Benefit Cosmetics: Free Shipping on $50 or more with code PRETTY50
Benefit Cosmetics: Free Shipping on $50 or more with code PRETTY50
Bliss World: Get a free bliss sample bag ($200 value) with purchase of $150 or more with code HOLIDAY (expires 12/31/2010)
Bobbi Brown: Free Standard Shipping on Any Order +a Mini Best-Seller: Hydrating Gel Cream (7ml) when you enter the code LUX88 at checkout* (Offer valid through 12.16.10 (midnight ET or while supplies last).
Lancome.com: Receive free shipping plus 2 samples with code LANGIFT
Mintbox: Various deals.
Ulta: Receive $10 off $50 or more with code HOLIDAY50 (expires 12/25/10)
Tarte: Use Code GGD for 15% off and free shipping on all orders over $40.
Trish McEvoy: Free shipping and gifts with every order (valid through 12/17, only on website).