Amazon cuts 20% off a selection of Quaker Oatmeal and Hot Cereal. Plus, many items are eligible for an extra 5% off and free shipping when you add them to your cart via Subscribe & Save. With prices starting at $8.59 after the above discounts, that's tied with our mention from a month ago as among the best deals we've seen for such a selection of Quaker cereal at Amazon, although in October we saw this same discount with a $5 starting price.
A best bet is the Quaker Instant Oatmeal Peaches & Cream 10-Count Box 4-Pack for $9.21 before the above discount, $8.75 with free shipping after. That's a buck under what you could expect to pay for the same quantity at a local Walmart.
Be sure to cancel Subscribe & Save once your order ships or you'll be billed for subsequent shipments.