This deal has ended.
Today only, Groupon offers a $50 credit at Art.com for $25. That's $25 off and the best deal we could find for this merchant. Art.com specializes in posters, framed art, and more. This voucher can be redeemed though September 16. This credit also includes shipping costs. (Shipping starts at $4.99.) Note that although this is listed under Groupon Seattle, it can be purchased and used by anyone outside of that area.