With orders of $25 or more, HealthSpot via Amazon offers Prime members the PB2 Powdered Peanut Butter and PB2 with Premium Chocolate 2-Pack for $6.99 with free shipping. (Non-members can spend $49 to qualify for free shipping.) That's $2 under what you'd pay in-store locally. It's non-GMO, Kosher, and has 85% less fat calories than traditional full fat peanut butters.

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