Groupon has a targeted promo going on where you can get $10 off any $20 purchase in Goods, Getaways or Local Deals. The offer is available today only and you need to use promo code ONEDAY10. Add a $20+ item to your cart and apply the promo at checkout to see if it works for you.
If you don’t have a Groupon account, which is probably rare these days, you can always use my referral link.
Simply Best Coupons and Discover Deals have the best rate right now with 10% cash back for Groupon Local deals.