Amazon has Skippy Peanut Butter, Natural Creamy, 15-Ounce Jars (Pack of 6) on sale for $13.30 (normally $18.60).
Sign up through Subscribe & Save to save an additional 15% plus get free shipping. Then use the code UNILVR77 at checkout to save another $2, bringing your total down to just $9.30 for for 6 jars.
This is a great price on natural PB, especially since you don’t have to clip any coupons or even schlep to the store!
Amazon’s pricing can fluctuate rapidly, so I’d jump on this if you want it. (And always confirm that the price there is as posted here before pulling the trigger.)