Saving Star has a great offer through March 21st: Spend $20 on any Special K products at any participating Saving Star store and earn a $5 eRebate. You can make your purchases in one trip or over multiple trips.
There are tons of participating stores. In our area we have Fred Meyer, Albertsons and Rite Aid.
Saving Star works a little differently than traditional electronic coupons. Your discount will not show up at check-out, but will be deposited into your Saving Star account. Once your account hits $5, you can request payment via PayPal, Amazon gift card or bank deposit.