Amazon offers the Frito Lay Classic Mix Variety 30-Pack for $8.49. Order via Subscribe & Save to drop it to $8.07 and bag free shipping. That's about $2 less than you could expect to pay at local warehouse club stores, although we saw it for a buck less two days ago. It includes a selection of Lay's, Cheetos, Fritos, and Doritos.

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Note: Be sure to cancel your subscription after receiving your item to avoid being billed for subsequent shipments.