No accountant necessary! The latest LivingSocial promo code gets you an extra 20% off almost any deal — with a maximum discount of $20. There are deals on dining, clothing, entertainment, spa/salon treatments, activities and more. Here’s how to get the discount: Go to LivingSocial. Find the deal you want. Click the “Buy Now” button. Then, click on “Redeem Promo Code” during the checkout process and enter promo code EARTHDAY. Finally, click “Apply”. The discount will be reflected on the final purchase confirmation page. The promo code is valid Friday, April 21 and Saturday, April 22 only — restrictions apply.