The San Francisco Kimpton hotels, a boutique chain with some quirky, fun properties, is offering 20% discounts to travelers arriving by public transit. Take Caltrain, BART or Amtrak to their hotels and save money as well as gas. According to the San Jose Mercury News, this is valid through December 30, and requires a seven day advance reservation, using the RTR code when booking.
Mark and I stayed in the Serrano hotel this past spring, a night away from the kids. Wish they had this promotion then, since we did take BART into the city! Got a great rate, though, from Julie at the travel agency Curing Cold Feet.