Target! They've got great sales, great clearance, AND you're able to stack coupons (you can use a Target Only coupon with a Manufacturer coupon for the same item). Here's a deal for the week of 2/20-2/26:
You'll get a free $5 Target Gift Card when you buy 7 frozen items. The Target ad gives you a list of items included in this offer, but many have said that the deal is for ANY frozen item. Some have bought 7 bags of frozen items at $0.97 a bag, and then get the $5 giftcard. When you work it out, it's basically like getting the bags at about $0.25 each.
Be aware that this offer differs from region to region, so just check your local Target ad :)
Thanks, Common Sense with Money!