Thumb Score: +1

It’s Google’s 21st birthday, so in Europe, you get 21% off today on the google store (store.Google.com/GB)

Enter code B‑GOOGLE21 at checkout, excludes stadia

Seems to be a Europe only thing, the US site doesn’t show anything for sale.

Terms & Conditions: Visit store.google.com to redeem. Offer ends 27th September 2019 23:59 BST. Must be age 18 or older. Promotional code offer is provided by Google Commerce Limited for use on Google Store UK only (must have UK shipping and billing address), and subject to the "Promotional Code Terms on Google Store". The offer cannot be combined with other offers, promotions or used on any product bundles. The offer cannot be used on any Stadia pre-order purchase or Nest Aware subscriptions.