Extra 20% off on Groupon – new code Posted on November 12, 2018 by The Goddess Jumpstart the Holiday Savings on Groupon with an extra 20% Off Activities, Massages, Dining and More with promo code SAVE20. Valid on 1 unit per transaction; max 3 local deals. Up to $50 discount per deal. Ends 11/13. Exclusions apply.