Available in select cities only. Amazon is now offering $30 off your first AmazonFresh order $100 or more with coupon code GROCERY30 [Exp 12/31]. Fresh is Amazon's grocery delivery service for Prime members and costs an additional $15/month.

They also have weekly deals and coupons that are actually pretty good (discount shown at checkout for most). This weeks' best include:

• 7oz TRULY GRASS FED 1 Year Aged Cheddar Cheese for $0.25
  
• 3 lb Dietz & Watson Chef Carved Dinner Ham for $5
  
• 50% off Stainmaster Cleaning Items
  
• 25% off Monster Energy Items
  
• 70% off Select Groceries