Adidas and eBay are currently doing a special 40% extra off sale on all of their inventory, there are definitely some good deals like Adidas Advantage Shoes for $21 and many more, US only though. Make sure to use the code ADIDAS40 at checkout.
The Adidas eBay Outlet is currently offering an extra 50% off on over 1,000 articles, even already discounted items. Just bought myself some Grand Court 2.0 for $21, make sure to use the code 50COUPON at checkout.