Book a refundable room at the Postcard Inn at St. Pete Beach and get up to 55% off the regular room price. Weekday rates drop as low as $79, and weekend rates drop as low as $179. This is good on a Classic King or Double Queen room through January. Kids under 17 stay for free. Plans changed? You'll get a full refund as long as you cancel at least 48 hours before arrival. Prices are based on two people traveling together. Taxes, fees, and exclusions apply.