Use the coupon code GET20WINTER at checkout to receive 20% off your cvs.com order. The fine print is as posted below::
*Offer available online only. Expires 1/2/12 at 11:59 PM ET. To receive the 20% off sitewide discount, enter coupon code GET20WINTER at Checkout. The 20% sale cannot be combined with another product sale running at the same time. You will receive the larger discount. The 20% sale excludes prescriptions and gift cards.