With orders of $25 or more, Amazon offers Prime members the Clif Builder's 20g Protein Bar 12-Pack in Chocolate Peanut Butter for $9.36 with free shipping. That's $2 under last month's mention, which didn't require a $25 purchase, and $5 under what you'd pay in-store locally. These bars feature non-GMO ingredients.

Note: This item is part of Amazon's "add-on" program and can only be purchased with an order of $25 or more.