Boxes of Nature Valley granola bars are on sale for $2.99 at Rite Aid. I found $0.50 Rite Aid peelie coupons on boxes of these bars at my store. Rite Aid allows you to stack these peelie coupons with manufacturer coupons. Grab two boxes and stack the green store coupons with a printable Nature Valley coupon. Pay just $1.99 each!