At participating Pizza Hut locations, buy one large pizza and get a large 1-topping pizza for free with your next order when you check out via Visa Checkout. That's tied with our mention from a week ago as the best BOGO offer we've seen from Pizza Hut; it yields a savings of at least $11.50. It's limited to online orders only. You'll be emailed a coupon for your free pizza, and it must be claimed within 14 days of the original order. Note that it's valid for delivery orders only.