Amazon has Popchips 3.5 oz bags (pack of 12) available for Subscribe & Save combined with 25% off coupon clipped on product page:
Sea Salt Potato Chips – 3.5 oz bags (pack of 12) for $20.70 – 25% off coupon clipped with 15% off S&S = $12.41
Crazy Hot Potato Chips – 3.5 oz bags (pack of 12) for $20.70 – 25% off coupon clipped with 15% off S&S = $12.41
Sour Cream & Onion Potato Chips – 3.5 oz bags (pack of 12) for $20.70 – 25% off coupon clipped with 15% off S&S = $12.41