Ally Bank has been listing weekly cash back offers of its Ally Perks program. The latest deals are shown in this Ally Bank blog post
The best one in my opinion is $5 back on $50 purchase (online only and only for one purchase) at Target.com. To qualify, you just have to make the purchase with your Ally checking debit card. Offer valid until 11/22/2012.
It's a small bonus, but if your purchase is $50, it's 10% cash back. It's easy money if you had been planning a Target purchase.
I reviewed Ally Perks