Groupon offers a $40 Google Express Credit for $15 for new customers only. (This offer is valid only for select states in the Midwest. Check availability for your ZIP code here.) That's a $25 savings and the lowest price we could find, although we saw it for $3 less three days ago. Google Express is a delivery service that allows you to order from local grocers and retailers like Walgreens and Costco. Deal ends January 30.