I generally don't buy meat or yogurt that's not in the bargain bins, although I think more and more people are noticing those bins as I find less stuff in them now.

$1 per 20 gm of protein is not always possible from my perception but then I don't always figure it out. Bargain bin yogurt is usually low. I said something to a cashier one time about getting 15gm protein for 50 cents and she looked at me like I was nuts.