Raise.com is selling Target gift cards right now for 6% off.
Start your purchase from Top Cashback and you will get another 1% off.
You will still get your credit cards rewards which is another 1-1.5% back (American Express not accepted - use either the Bank of America Privileges or Fidelity Visa for 1.5%).
When you are ready for the purchase from Target.com, log in to your Target.com account with your Target Red Card associated with it and you will get another 5% on top of that.
Grand total of 13.5% off of Target if you use all of that.
This was all shorthand, you can check out this post for more explanation if you don't understand anything.