Expedia: $30 off $40+ Activity Bookings

Through December 31st, Expedia.com is offering $30 off a qualifying booking for an activity of $40 or more when you use code THANKYOU at checkout.
This code only applies to select activity bookings (not a stand-alone hotel booking, or a hotel in combination with any other product or offering such as flight + hotel) and your event dates must be between 12/1-12/31.