This has now expired and is no longer available
Currently Discover Deals is offering 10% cashback on purchases at Sears.com. The terms & conditions explicitly allow cashback when purchasing or using gift cards so you can double dip by first buying gift cards and earn 10% cashback, and then go again and make a purchase using the gift card for another 10% cashback. Under the current DiscoverIT double all your cash back promotion, the 20% earned will be doubled at the end of the promotion year for a grand total of 40% cashback on any Sears purchases. This is a fantastic opportunity to buy goods from Sears with a huge rebate.
However the 10% cashback via Discover Deals end 6/21. After that it will drop I presume to 5%. While that will still mean a potential 20%, I think 40% is nicer. There is some chance that the 10% will come back, but then again with the double your cashback promotion running they may sit this one out.
At the very least this may be a good time to stock up on Sears gift cards. You are going to get a 20% rebate on those, and you should then be able to get at least a 10% rebate when redeeming them if you use them for online purchases.
You can subscribe to Miles Abound by email by signing up here. Keep up to date on ideas and experiences around miles and travel!