For new subscribers only, at The Venetian Resort Hotel & Casino Las Vegas, book a 2-night stay and get a third night for free after signing up for The Venetian mailing list. (On the landing page, click "Sign up & Save"; an email will arrive within an hour with a link to your discounted booking. The discount is displayed as a 33% off discount over each night for a 3-night stay.) That's a savings of at least $53, although nightly rates are often well over $200 at this property. Additional taxes, fees, and blackout dates apply. This 5-star resort hotel has an Expedia rating of 92% based on 10,844 reviews and TripAdvisor ranks it #11 of 264 hotels in Las Vegas. Book this deal by June 28 for stays through June 30.