Amazon offers the ZonePerfect Nutrition Bar 30-Count Box in Chocolate Mint for $21.55 with free shipping, via the below directions. That's at least $5 less than you'd pay for this quantity in any flavor at a local retail store. Each serving contains 14 grams of protein. To get this deal:

1. View the ZonePerfect Nutrition Bar 30-Count Box for $28.74
2. clip the 20% off coupon on the product page
3. check out via Subscribe & Save for a final price of $21.55

Be sure to cancel your subscription after your order arrives to avoid being billed for subsequent shipments.