I found these deals available through the AMEX portal, as an "Amex Offer & Benefit".
Walmart - Spend $15+, get $5 back. Expires :12/30/14
Newegg - Spend $200+, get $25 back. Expires: 12/31/14
Toys R Us In Store - Spend $25+, get $5 back. Expires: 12/31/14
Toys R Us Online - Spend $75+, get $15...