Amazon.com has Pop-Tarts in Frosted Brown Sugar Cinnamon 16-Count Tarts (Pack of 8)
for $21.26 with subscribe & save. Regular amazon price is $43.40. Other kinds are available at a higher cost.
With subscribe & save shipping is free, you can cancel after it ships from your amazon account page.
Makes it $2.65 for a 16 ct box of PopTarts or .17 a PopTart.